-SPECIFICALLY DESIGNED for post hip surgery patients. Allows for sitting/resting without excessive, contra indicated hip or knee flexion. Also ideal for post knee surgery patients. Doctor/Rehab Specialist recommended. -Medical grade, nonabsorbent SOFT PADDING and a light weight, height adjustable rustproof chassis. -Can be used anywhere in the house, including the bath and shower! It's like getting 2 chairs for the price of 1.