The Medline MDS86850ES Steel Foldable Adult Rollator is a mobility walker that is designed for adults. It has a weight capacity of 350 pounds and a product weight of 19 pounds. The wheel size is 6 inches and the handles adjust from 31 to 35 inches, allowing users a more customized fit. The width between the handles is 17.5 inches and the seat height is 20.5 inches (not adjustable).