McKesson Protekt Seat Cushion

High density polyurethane foam to help in the prevention of pressure sores Ultra-lightweight, 3-inch cushion, ideal for wheelchair use and convenient transport Adjustable safety straps to maintain appropriate position and add security Low-shear, stretch nylon cover is breathable, comfortable with a durable, gray bottom for added skid resistance. Low-maintenance, waterproof cover accommodates risks of spills, perspiration and incontinence. Unzips for convenient machine washing High resilient material designed to maximize shock absorbency and impact caused by various terrains for up to 250 lbs. 18 inches wide x 18 inches deep x 3 inches high