ASSIS Patio Seat Cushion Chair Pad Cushion Office Chair Cushion (Gray) Comfortable and can help relieve lower back pain Works anywhere; use in hard chair at home or office, in car, truck or plane, as pads on bleachers, on patio chairs; wheelchair Generously filled with soft polyester cotton inside Size:40cm*40cm,sized to fit most chairs Strap design used,prevent the cushion falling to the ground when being knocked