All-Terrain Knee Walker with air pump & shock absorber for additional buffer and smooth running on rough surfaces Disc brakes for immediate stopping and parking brake for keeping the walker in place Adjustable handlebar & knee platform allow to place your leg both horizontally and vertically Handlebar can be folded down and placed in a car trunk for storage; A large front bag for storing belongings Sturdy aluminum alloy construction for rust-resistance, supporting up to 300 Lbs