Ergonomically designed to support the spine in the proper position for seating comfort all day long. Adjust the shape and thickness of the cushion to customize comfort. Allows the spine to assume its natural inSin shaped curve. Adjusts easily for individualized comfort and support. Ideal for use in office, home, car or plane. Adjustable strap holds cushion in place. Deluxe Lumbar Support CushionMemory Foam conforms to the body’s natural curves, providing maximum relief. General Category: Seating Accessory; Sub-Category: Backrest; Lumbar Support; Colors: Black; Color Family: Black.