Forward tilt of the seat cushion relieves stress from the lower spine & pelvic area. Adjust the shape & thickness of the cushion to customize comfort. When used as a back cushion, provides proper seat depth dimension. Adjusts easily for individualized comfort & support. Ideal for use in office, home, car or plane. Adjustable strap holds cushion in place. Deluxe Seat / Back CushionMemory Foam conforms to the body's natural curves, providing maximum relief. General Category: Seating Accessory; Sub-Category: Backrest; Seat Cushion; Color(s): Black; Color Family: Black.