Protekt O2 Wheelchair Cushion 20 x16 x4 with Pump Foot Products Displays Wood base measures 7 wide 18747 Wood base measures 7 wide x 42 long and 1 1 4 thick * Height adjusts from 22 to 36 * Width adjusts from 16 to 24 * Handrail size: 1 1 2 * Requires only 14 of floor space when not in use * Comes with one stabilizing bar to lock parallel bars in open position * Please call customer service for details An excellent choice for the prevention and treatment of pressure sores * The soft interconnected air cells allow for deep immersion providing constant low pressure across the entire seating surface * Adjustable air cells offer deep immersion to provide excellent pressure redistributino for tissue protection and treatment * Dual valve compartments address seating challenges such as pelvic obliquities sacral seating and enhances posture control * Both compartments can be adjusted indepedently to increase positioning and stability for side to side control * Nilon breathable cover with non skid bottom and safety straps * Easy to use hand held inflation pump * Flame resistant latex free neoprene * Patch kit included * Weight capacity: 500 lbs * Warranty: 5 year prorated *