Finding the best portable wheelchair ramps involves balancing weight capacity, portability, ease of setup, and durability. The Gardhom 5FT Wheelchair Ramp stands out as the overall top pick due to its combination of high load capacity and anti-slip surface. For those prioritizing lightweight design, the FACHNUO 2 Feet Ramp offers excellent portability with a solid 800 lbs capacity. Meanwhile, the 12 Feet Aluminum Ramp provides extended length for more challenging terrain, though it sacrifices some portability. Readers should consider their specific mobility needs and travel frequency, as tradeoffs between length, weight, and capacity are common. Continue reading for detailed comparisons to help you choose the right ramp for your situation.
Key Takeaways
- The top-rated ramps combine high weight capacity with lightweight, foldable designs for maximum portability.
- Longer ramps like the 12-foot options are better for uneven terrain but tend to be heavier and less convenient to carry.
- Material choice, primarily aluminum, offers a good balance of durability and weight, but some models include support legs for added stability.
- Ramp width and surface texture significantly impact safety and ease of use, especially for scooters and powerchairs.
- Price varies widely; investing in well-built, durable ramps often pays off over cheaper, lower-capacity alternatives.
More Details on Our Top Picks
Gardhom 5FT Wheelchair Ramp for Home Steps, 800 lbs Load Capacity, Anti-Slip Aluminum, Portable Folding Handicap Ramp for Doorways, Stairs, Curbs, Scooters
The Gardhom 5FT wheelchair ramp stands out for its impressive 800 lbs load capacity, making it suitable for a wide range of mobility devices and users needing maximum support. Its durable aluminum construction with double anti-slip surfaces enhances safety, especially outdoors where weather conditions can vary. Compared with shorter or lighter options like the FACHNUO 4FT Ramp, this model offers extended length for higher thresholds, but at the expense of added weight—33 lbs—that could challenge those with limited strength. Its foldable design facilitates transport and storage, yet the support legs are not compatible with steps under 12 inches, which may limit versatility for some. This ramp is ideal for users seeking a robust, long-term solution for both indoor and outdoor use, who prioritize safety and capacity over lightweight portability.
Pros:- Supports up to 800 lbs, ensuring durability and safety for heavy devices
- Foldable design for easy transport and storage
- Double anti-slip surface enhances grip in all weather conditions
- Rust-resistant aluminum suitable for indoor and outdoor environments
Cons:- Relatively heavy at 33 lbs, which may be difficult for some users to carry
- Support legs are not compatible with steps less than 12 inches, limiting some applications
- Joint bulges may require moderate pressure to flatten during setup
Best for: Individuals needing a high-capacity, multi-surface ramp suitable for outdoor stairs or uneven terrain.
Not ideal for: Elderly users or those with limited strength who prefer a lightweight, easy-to-carry ramp for small thresholds.
- Length:5 feet
- Load Capacity:800 lbs
- Material:Aluminum
- Folded Size:30 x 14.5 x 6.3 inches
- Unfolded Size:60 x 29.2 x 2 inches
- Weight:33 lbs
Bottom line: This ramp makes the most sense for users who need a durable, high-capacity ramp for diverse outdoor and indoor settings and can handle its weight.
Portable 5ft Aluminum Wheelchair Ramp – Non-Slip, 800 lbs Capacity
This 5-foot aluminum ramp combines a lightweight build with a generous 800 lbs weight capacity, making it ideal for users needing a reliable yet portable option. Its foldable design and non-slip surface enhance safety and convenience, comparable to the VNN 4FT Ramp, but with a longer length for higher thresholds. While its size supports most doorways and stairs, careful measurement is necessary—if the incline is too steep, the ramp’s safety could be compromised. Its 33 lbs weight remains manageable for most users, but those with limited strength might struggle with extended carrying. This pick is best for users who want a balance of portability, safety, and capacity for both indoor and outdoor use in everyday settings.
Pros:- Supports up to 800 lbs, suitable for heavy-duty mobility devices
- Foldable for easy transport and storage
- Non-slip surface for added safety in diverse conditions
- Lightweight at 33 lbs for a 5-foot ramp
Cons:- Requires precise measurement to avoid steep inclines
- May be too long for very small or narrow steps
- Less suitable for very tight spaces where shorter ramps are needed
Best for: Families or caregivers seeking a portable, high-capacity ramp for frequent outdoor and indoor use on various thresholds.
Not ideal for: Users with very small steps or tight spaces where a shorter, more compact ramp would be better suited.
- Length:60 inches
- Width:29.2 inches
- Height:2 inches
- Weight:33 lbs
- Capacity:800 lbs
- Folded Size:30 x 14.6 x 6.3 inches
Bottom line: This ramp offers a great mix of length, capacity, and portability for users needing reliable indoor-outdoor access with minimal hassle.
12 Feet Aluminum Portable Wheelchair Ramp with Support Leg, 600 lbs Capacity
The 12-foot length of this ramp makes it a standout choice for users needing to span higher or longer thresholds, such as outdoor stairs or loading zones. Its sturdy aluminum construction supports up to 600 lbs, slightly less than some shorter models but still sufficient for most mobility devices. The included adjustable support legs and reflective strips boost stability and safety, especially on uneven terrain. When compared with the Gardhom 5FT Ramp, this model sacrifices some weight capacity for extra length, and it can be heavier to carry, which might limit portability for some users. This ramp is best suited for those who prioritize a long, stable incline over ease of handling, such as caregivers or users with frequent outdoor needs.
Pros:- Supports up to 600 lbs, suitable for most mobility devices
- Includes adjustable support legs for enhanced stability
- Reflective strips improve visibility and safety outdoors
- Foldable design for manageable storage
Cons:- Relatively heavy to carry when fully assembled
- Long length may be cumbersome in tight indoor spaces
- Requires careful measurement to ensure proper fit
Best for: Caregivers or users needing a long, stable ramp for outdoor or uneven terrain with a focus on safety and durability.
Not ideal for: Individuals seeking a lightweight, easy-to-carry ramp for everyday small thresholds or indoor use only.
- Material:Aluminum
- Length:12 feet
- Width:28.7 inches
- Weight Capacity:600 lbs
- Foldable:Yes
- Support Legs:2 adjustable
Bottom line: This ramp offers increased length and stability for outdoor or complex access points, best for users who need maximum safety over portability.
4FT Portable Wheelchair Ramp with Handle, Non-Slip Aluminum for Home and Travel, 800 lbs Capacity
This 4-foot ramp focuses on portability and ease of use, supporting up to 800 lbs with a lightweight design at a manageable weight for most users. Its ergonomic handle and weather-resistant aluminum make it ideal for travel or quick outdoor fixes, similar to the VNN 4FT Ramp, but with added safety features like a locking latch for secure folding. Its length suits small doorways and step heights of 4 to 12 inches, but may be less effective for higher thresholds or uneven terrain. The limited length can make steep inclines, so careful measurement before purchase is essential. This ramp makes the most sense for those prioritizing portability and quick deployment in home or travel settings, where space and weight are key considerations.
Pros:- Supports up to 800 lbs, handling most mobility devices
- Lightweight and easy to carry with ergonomic handle
- Weather-resistant, durable aluminum construction
- Secure folding with safety latch
Cons:- Limited to height differences of 4-12 inches, less versatile for higher thresholds
- May be too short for larger steps or uneven outdoor terrain
- Requires space for unfolding and storage
Best for: Travelers or homeowners needing a compact, durable ramp for small steps and door thresholds.
Not ideal for: Users requiring longer ramps for higher or more complex outdoor terrain, where longer models like the Gardhom 5FT Ramp are better suited.
- Length:4 feet
- Weight Capacity:800 lbs
- Material:Aluminum alloy
- Folded Dimensions:Not specified
- Application:Doorways, steps, curbs
Bottom line: This ramp is ideal for users needing a portable, lightweight solution for small thresholds and travel situations with minimal setup effort.
VNN Portable 4FT Wheelchair Ramp, Non-Slip Aluminum for Home and Steps
The VNN 4FT ramp offers a straightforward solution for home use, supporting up to 800 lbs with a focus on safety and ease of use. Its lightweight design and foldability make it suitable for daily deployment at door thresholds or small stairs, comparable to the FACHNUO 2FT Ramp but with a longer length for higher steps. Its non-slip surface and reflective stickers add safety features, though some users report slight sinking during use—an acceptable tradeoff for its lightweight profile. Its capacity and design make it ideal for standard home thresholds but less suitable for outdoor or high-traffic environments where more rugged, longer options are preferred.
Pros:- Supports up to 800 lbs, suitable for most mobility devices
- Lightweight and foldable for easy transport and storage
- Non-slip surface with double safety protections
- Rust-resistant aluminum construction
Cons:- May sink slightly during use, which is typical for lightweight ramps
- Limited to step heights of 4-12 inches, less flexible for larger elevations
- Proper installation and weight distribution are essential for safety
Best for: Homeowners or caregivers requiring a portable, easy-to-store ramp for step heights between 4 and 12 inches.
Not ideal for: Users needing a ramp for outdoor loading docks or very high thresholds, where longer or more robust ramps are necessary.
- Length:4 feet
- Maximum Weight Capacity:800 lbs
- Material:Aluminum
- Application:Wheelchair access, door thresholds
- Foldable:Yes
Bottom line: This ramp provides a practical and safe option for daily home use on moderate step heights, emphasizing portability and safety features.
Gardhom 7FT Adjustable Telescopic Wheelchair Ramp, 84″ L x 7.4″ W, Portable Aluminum, Supports up to 600 lbs
This ramp stands out for its impressive 7-foot length, making it highly adaptable for various entry points, especially compared to shorter options like the 4-foot models. Its telescoping design offers adjustable length, which helps in customizing for different heights, unlike fixed-length ramps such as the FACHNUO 2 Feet ramp. The aluminum construction ensures lightweight portability, but at 17.61 pounds, it may be challenging for some users to carry without assistance. Its high weight capacity of 600 lbs makes it suitable for most manual wheelchairs, yet it’s not designed for electric wheelchairs or mobility scooters. The anti-slip surface adds safety in diverse conditions but doesn’t compensate for its limited height range (7-14 inches). Overall, this ramp provides a flexible, durable solution for users needing a longer, sturdy ramp, but it requires some effort to transport due to its weight.
Pros:- Supports up to 600 lbs, ideal for most manual wheelchairs
- Adjustable length from 7 to 14 inches for versatile setup
- Lightweight and portable with included carrying bag
- Durable, rust-proof aluminum with anti-slip surface
Cons:- Heavy for some users to carry regularly
- Not suitable for electric mobility devices
- Cannot be used directly over stairs without proper placement
Best for: Individuals needing a long, adjustable ramp that can support heavy manual wheelchairs for home or outdoor use.
Not ideal for: Users with electric scooters or power wheelchairs, since it isn’t rated for their weight or size, or those seeking a lightweight, ultra-portable option for quick trips.
- Length:7 feet (84 inches)
- Width:7.4 inches
- Folded Size:4 feet (47 inches)
- Weight:17.61 lbs
- Maximum Load:600 lbs
- Applicable Height:7-14 inches
- Material:Aluminum alloy
- Anti-slip Surface:Yes
Bottom line: This ramp is perfect for users needing a customizable, heavy-duty solution for various home and outdoor accessibility needs, with some tradeoffs in portability.
FACHNUO 2 Feet Portable Wheelchair Ramp, Non-Slip Aluminum Handicap Ramp with Handle, Folding Threshold Wheelchair Ramp for Home Steps, Stairs, Entry, Doorways, Scooter, 800 lbs Capacity
This ramp offers a compact 2-foot length, making it ideal for small thresholds and narrow entryways, especially when compared to longer options like the Gardhom 7FT ramp. Its folding, lightweight design with a built-in handle enhances portability, which is a key advantage over bulkier models. With an impressive 800 lbs capacity, it supports heavy wheelchairs and scooters, surpassing many shorter ramps like the 4-foot models. However, its limited length restricts use to minor height differences, and it may not be suitable for high steps exceeding 12 inches. The non-slip surface and foldable design make it a practical choice for quick setups at home or travel but less flexible for large elevation changes.
Pros:- Supports up to 800 lbs, suitable for heavy scooters and wheelchairs
- Folds easily with a built-in handle for transport
- Non-slip rubber traction pads enhance safety
- Lightweight at around 15.5 pounds
Cons:- Limited to a maximum rise of 12 inches
- Only available in a 2-foot length, less flexible for larger steps
- Requires some assembly or proper placement for best use
Best for: People needing a short, portable ramp for small steps or thresholds, especially in tight spaces or for travel.
Not ideal for: Users with high steps or requiring longer ramps for outdoor stairs, since its maximum rise is 12 inches and length is limited.
- Material:Aluminum alloy
- Length:2 feet (24 inches)
- Width:Approximately 13 inches
- Weight:15.5 pounds
- Maximum Load:800 lbs
- Usable Height:2 to 12 inches
- Design:Folding with handle
- Traction:Rubber pads
Bottom line: This ramp excels as a compact, heavy-duty option for small thresholds, with limited use for high or long stairs.
7FT Telescoping Portable Wheelchair Ramp – 2 Pack, Aluminum, Non-Skid, 600 lbs Capacity
This set of two 7-foot telescoping ramps offers versatility and value for users needing extended length for different setups. Compared to a single long ramp like the Gardhom 7FT, this two-pack allows for more adaptable configurations, such as creating a gentle incline over longer distances or multiple access points. The aluminum construction ensures lightweight handling and corrosion resistance, though each ramp weighs 20 pounds, making transportation less effortless than smaller models. With a 600 lb capacity, these ramps support most manual wheelchairs but are not suitable for electric models. The anti-slip surface improves safety, but users must double-check the correct length before use to avoid misapplication. This pick is best for those who want flexibility across multiple sites or setups at a better price point.
Pros:- Two ramps provide flexible setup options
- Supports up to 600 lbs per ramp
- Adjustable length from 48 to 84 inches
- Anti-slip surface and corrosion-resistant aluminum
Cons:- Each ramp is relatively heavy at 20 lbs
- Requires careful measurement to ensure correct length
- Not suitable for electric wheelchairs or scooters
Best for: Families or facilities needing multiple ramps for different locations or longer access paths on a budget.
Not ideal for: Individuals seeking a lightweight, single-ramp solution or those with electric wheelchairs, due to weight and capacity considerations.
- Length:84 inches
- Width:7.4 inches
- Weight:20 lbs per ramp
- Capacity:600 lbs per ramp
- Material:Aluminum alloy
- Number of ramps:2
Bottom line: This dual-ramp kit offers great value and flexibility for users needing adaptable access over longer distances, with some added heft to manage.
Portable 4FT Aluminum Wheelchair Ramp with Non-Slip Surface, Folding Handicap Threshold Ramp for Home Steps and Doorways
This 4-foot ramp strikes a balance between portability and functionality, making it suitable for many home improvements. Its foldable design with handles simplifies transport and storage, standing out against bulkier, fixed-length ramps. Supporting up to 600 lbs, it can accommodate most manual wheelchairs and scooters, but its maximum rise of 12 inches limits its use to relatively shallow steps or thresholds. The rubber traction pads enhance safety on different surfaces, and its rust-resistant aluminum ensures durability. However, its single size of 4 feet means it may not fit all staircases or high thresholds, and assembly is sometimes required for optimal setup. It’s a reliable choice for quick, easy accessibility upgrades at home, but less suitable for higher or more complex terrain.
Pros:- Supports up to 600 lbs, suitable for most wheelchairs and scooters
- Folding design with handles for easy transport
- Non-slip rubber traction pads for safety
- Rust-resistant aluminum construction
Cons:- Limited to a maximum rise of 12 inches
- Only available in a 4-foot length, less adaptable for taller stairs
- Some assembly may be needed for best use
Best for: Homeowners or caregivers needing a portable, moderate-length ramp for moderate steps or thresholds that require easy setup and storage.
Not ideal for: Users with high stairs exceeding 12 inches or those seeking a highly customizable length for complex terrain, as its fixed 4-foot length limits flexibility.
- Material:Aluminum alloy
- Length:4 feet (48 inches)
- Width:29 inches
- Height/Adjustable Rise:4-12 inches
- Weight:15.54 pounds
- Capacity:600 lbs
- Design:Folding with handles
- Traction:Rubber pads
Bottom line: This ramp provides a practical, portable solution for moderate-height thresholds, with tradeoffs in maximum rise and length flexibility.
Portable Wheelchair Ramp 3FT, Non-Skid Aluminum, 800 lbs Capacity
This ramp stands out for its combination of high weight capacity and portability, making it a reliable choice for a variety of low-rise entries. Compared with the FACHNUO 3 Feet Ramp, it offers a slightly higher weight limit—800 lbs versus 700 lbs—and a broader support range for different mobility devices. Its lightweight aluminum construction and foldable design ensure easy transport and storage, while safety features like non-slip surfaces and reflective strips enhance usability indoors and outdoors. The main tradeoff is its limited height range, supporting only up to 9 inches, which may restrict use on taller steps. Its dimensions are well-suited for standard doorways and stairs, but users with taller elevations will need longer options.
Pros:- Supports up to 800 lbs, accommodating most mobility devices
- Foldable and lightweight for effortless transport
- Non-slip surface and safety features for secure use
- Corrosion-resistant, suitable for outdoor and indoor use
Cons:- Limited to low rises up to 9 inches, not suitable for higher steps
- Size requires checking for fit before purchase to avoid space issues
Best for: Individuals needing a durable, versatile ramp for low-rise residential or outdoor steps with high weight support.
Not ideal for: Users facing higher steps over 9 inches or requiring longer ramps for elevated terrains, as this model is optimized for low rises only.
- Length:36 inches
- Width:29.2 inches
- Height:2 inches
- Weight:18.7 lbs
- Capacity:800 lbs
- Folded Size:36″ L x 14.6″ W x 3.2″ H
Bottom line: This ramp provides a reliable, high-capacity solution for low-rise access needs, especially for those prioritizing portability and safety.
FACHNUO 3 Feet Portable Wheelchair Ramp, Non-Skid Aluminum Handicap Ramps with Handle
This ramp excels in providing a straightforward, reliable solution for home entrances, with a focus on ease of use and portability. Unlike the B09Y8YXWB4 ramp, it features a handle that makes transport even simpler, perfect for caregivers or users frequently moving the ramp between locations. Its non-slip surface and reflective safety strips enhance security, especially in outdoor settings. However, its maximum recommended height of 9 inches makes it unsuitable for taller steps, and some users might find the size too bulky for very narrow doorways. Still, its aluminum build ensures durability and resistance to weather elements, making it an ideal choice for frequent outdoor use or temporary setups at home.
Pros:- Supports up to 800 lbs, suitable for various mobility aids
- Folds easily with a handle for convenient transport
- Non-slip surface and reflective strips for safety
- Durable aluminum construction for outdoor use
Cons:- Not recommended for steps taller than 9 inches
- Longer ramps may sink temporarily under load, affecting stability
Best for: Homeowners needing a portable, easy-to-carry ramp for low thresholds or steps within the 3-9 inch range.
Not ideal for: Those requiring ramps for taller stairs or narrow spaces, as its size may be cumbersome and height support limited.
- Length:3 feet (36 inches)
- Width:29 inches (unfolded)
- Folded Width:14.5 inches
- Height:2 inches
- Weight Capacity:800 lbs
- Folded Size:36”x14.5’x3.2”
Bottom line: This ramp offers excellent portability and safety features ideal for low-rise home thresholds but isn’t suited for taller steps or very narrow openings.
How We Picked
To determine the best portable wheelchair ramps, I focused on key factors that impact usability and safety. These included load capacity to ensure they support various mobility devices and user weights, portability features like weight and foldability for travel convenience, and build quality for durability in different environments. I also considered safety features such as anti-slip surfaces and support legs, along with overall value in relation to price. Ramps were ranked based on how well they balance these factors while meeting common user needs, such as ease of setup and transport. This approach ensures the recommendations serve both everyday users and those with specialized needs.Factors to Consider When Choosing Best Portable Wheelchair Ramps
Choosing the best portable wheelchair ramp involves more than just capacity and length. Beyond product specs, buyers should consider how often they’ll use the ramp, the environments they’ll navigate, and how much weight they can comfortably carry. A well-chosen ramp enhances safety and independence without adding unnecessary bulk or cost. The following factors will help you evaluate options to ensure your specific needs are met.Weight Capacity and Stability
Weight capacity is fundamental—ensure the ramp supports your device and user weight with a comfortable margin. Look for models with sturdy support legs or anti-slip surfaces, especially if you plan to use the ramp on uneven or outdoor terrain. Stability features prevent wobbling or slipping, making your transitions safer. Remember, a ramp that exceeds your weight needs provides peace of mind, especially if you regularly travel with heavier mobility devices.
Portability and Ease of Use
The primary advantage of portable ramps is their ability to travel with you. Focus on weight, foldability, and handle design. Lightweight aluminum models that fold into manageable sizes make transportation easier, particularly for users or caregivers frequently on the move. Avoid overly bulky designs if portability is a priority, but be aware that lighter models sometimes compromise on capacity or length. Balance convenience with your specific access requirements.
Length and Incline
The length of the ramp determines the incline, which impacts safety and ease of use. Longer ramps reduce the slope, making transitions gentler, but they tend to be heavier and less compact. Shorter ramps are more portable but require steeper inclines that might be challenging for some users. Consider the typical height you need to overcome and choose a length that offers a manageable slope without sacrificing portability.
Material and Surface Texture
Aluminum is the most common material, offering a good mix of weight, durability, and weather resistance. The surface should have non-slip features, especially for outdoor use or in wet conditions. Some ramps include textured surfaces or rubberized grips that improve traction. Remember, a slippery ramp can be dangerous, so prioritize textured, anti-slip surfaces regardless of the material quality.
Price and Durability
While cheaper ramps might seem attractive, they often lack longevity or sufficient capacity. Investing in a well-constructed aluminum ramp with reinforced edges and support features can save money in the long run by avoiding replacements. Assess your usage frequency and environment—more frequent or outdoor use warrants a more durable, higher-quality ramp. Balancing cost and durability ensures you get a ramp that lasts and performs reliably.
Frequently Asked Questions
How do I determine the right length for my ramp?
The ideal length depends on the height you need to overcome and your comfort level with incline. A common guideline is a 1:12 slope ratio, meaning for every inch of height, the ramp should be at least 12 inches long. For example, a 6-inch step would require a ramp about 6 feet long for a gentle incline. Longer ramps reduce the slope, making them safer and easier to cross, but they also add bulk. Measure carefully and consider your vehicle’s or device’s ability to handle steeper inclines if space is limited.
Is aluminum the best material for portable ramps?
Aluminum is widely regarded as the best material for portable wheelchair ramps due to its lightweight, corrosion resistance, and durability. It allows for easier transport and setup without sacrificing strength. Other materials like steel are heavier and less portable, while plastic can wear down faster. Aluminum ramps also typically feature textured surfaces for slip resistance, an essential safety feature. Overall, aluminum strikes the best balance for most users seeking portability and longevity.
Can I use a shorter ramp for outdoor steps?
Shorter ramps can be suitable for outdoor steps if the incline remains manageable and safe. However, a very steep slope increases the risk of slipping or tipping, especially in wet conditions. For outdoor use, longer ramps are generally safer, providing a gentler incline and more stability. Always consider the specific height and terrain, and opt for a ramp that provides a slope of about 1:12 or gentler. Support features like handrails or support legs can further enhance safety on shorter, steeper ramps.
How do I maintain my portable ramp to ensure safety?
Regular maintenance includes cleaning the surface to remove debris, dirt, or moisture that can cause slipping. Inspect the ramp for any signs of corrosion, cracks, or loose hardware, especially after outdoor use. Lubricate hinges or support legs if necessary, and ensure all safety features remain intact. Proper storage in a dry, clean environment when not in use extends the ramp’s lifespan. Consistent care ensures the ramp remains secure, stable, and safe for every use.
When should I consider a ramp with support legs or additional stability features?
If you’ll be using the ramp on uneven terrain, outdoor environments, or for heavier mobility devices, support legs and stability features become essential. These additions prevent wobbling and provide extra security, especially for longer or steeper ramps. Support legs also help distribute weight more evenly, reducing stress on the ramp material. For frequent or outdoor use, investing in these features enhances safety and prolongs the ramp’s useful life.
Conclusion
For those seeking an all-around reliable option, the Gardhom 5FT Wheelchair Ramp offers excellent capacity and durability, making it ideal for daily use at home or travel. Users prioritizing portability and quick setup will find the FACHNUO 2 Feet Ramp best suited, especially for short-distance transitions. For extensive outdoor needs or uneven terrain, a longer ramp like the 12 Feet Aluminum Ramp provides the necessary incline reduction, though it sacrifices some portability. Beginners or occasional users should focus on lightweight, foldable options, while more regular travelers might prefer models with support legs and higher weight capacities. Ultimately, selecting the right ramp depends on balancing length, portability, stability, and budget tailored to your specific mobility needs.
