Features 1、Stainless Steel: The seat board support frame is made of stainless steel for stability and strong load bearing capacity, with non slip fixing buckles on both sides to securely fasten it to the walker's bracket. You can use it with confidence. 2、Large Seat Plate: The large seat plate size is 40x23cm, the surface of the seat plate is PU leather, the inner layer is memory foam, soft and comfortable. Suitable for most of the four legged walkers on the market, providing a resting place for the elderly who have difficulty walking for a long time. 3、Standard Aperture Wheels: Senior walker wheels with standard aperture, compatible with most walkers on the market, transforms the walker into a slick rolling walker, helps the elderly walk more easily and with less effort. 4、Universal Rotation: The plastic wheels can rotate in all directions, very slick, suitable for tile, concrete, wood, carpet and other surfaces, won't leave marks, won't scratch the floor. Brake Principle:Press the armrest, the rear wheel middle foot tube on the ground can decelerate the brake, can be braked more safely. 5、5 Gear Height Adjustable: Compatible with walker adjustable height, 5 height adjustable with latch fixing aperture. Aluminium alloy chair legs, sturdy and lasting, no deformation, strong load bearing capacity. 6、Easy to Install: The seat plate is easy to install, no extra tools or equipment are needed to attach it to your walker, remove the fixed buckle on one side of the seat plate when it is not in use, it can be folded up and down without affecting the walker walking. To install the wheel just remove the lower part of the front leg of the walker and install this wheel. Specification Item Type: Walk Aid Seat Board and Wheels Set Material: Stainless Steel, Aluminum Alloy, PU Leather, Sponge, Plastic, Composite Wood Size: Support Stand Length: Approx. 51.5cm / 20.28in Seat Board: Approx. 40x23cm / 15.75x9.06in Wheel Size: Inner Diameter of Wheel Leg: Approx. 2.5cm / 0.98in Suitable for walker legs with outer diameter less than 2.5cm Seat Board Usage: Can be installed on elderly walker as a seat, allowing elderly to rest anytime and anywhere when tired. Suitable for use with 4 legged walkers. Wheel Usage: Can be installed on the front legs of elderly 4 legged walker, achieving leg swap to help elderly walk more easily and reduce effort. Wheels with brakes for safety. Brake Principle of Wheels: Press down the handle, the rear wheel middle foot pipe touches the ground to decelerate the brake, making braking safer.Elderly walking aid accessories Wheel Features: 5 level height adjustment, aluminum alloy wheel legs, plastic wheels Package List 1 x Walk Aid Seat Board 1 x Pair Walk Aid Wheels