The Protekt� O2 wheelchair cushion is 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 4 high air cells offers deep immersion to provide excellent pressure redistribution 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 independently to increase positioning and stability for side to side control * Nylon 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 Non-Prorated