Protekt O2 Wheelchair Cushion 18 x16 x4 with Pump Cushions Air 0 (D) Weight: 6 Jobst Ultrasheer 30 40 ThighHi 0 (D) Weight: 6 5 (Inside Width) * Designed to transition wheelchair or scooter from one surface height to another * Durable lightweight construction * Comes with carry bag * Perforated slots keep water form collecting on ramp * Weight capacity: 600 lbs * Limited Lifetime Warranty 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 *