... foam material for a comfortable waist or neck support, used for seat or car. A memory foam cushion is made out ... shape a comfortable waist or neck support, especiall suitable for seat or car.Certificates: CA117, CFR1633, EN14533, ISO12952, BS5852, ROHS, ... memory foam cushion, visco elastic cushion, foam cushion, memory cushion, seat cushion, back cushion, car cushion, neck support, waist support ) ...