The drie medical steerable knee walker allows you to get around without crutchs for indiiduals recovering from foot surgery, breaks, sprains, amputation and ulsers of the foot. it can be steered for increase mobility. knee pad can be adjusted toolfree from 18.8" to 21.8". ez handle height adjustment is also toolfree. deluxe dual lever brakes ensure safety. the leg pads have channels which proide added stability and comfort. 8' casters are idea for indoor/outdoor use. sturdy dual fra