ZB McCartys Sacro Ease Tapered Wedge Memory Foam Car Seat Support BLACK This Model has 15" Width, 15" Depth and 19" Height 3" to 1" Wedge bottom - 1"Memory Foam in seat back and 1" Memory Foam over poly foam base in the seat Individuals may benefit from Memory foam if they have pressure points, or pressure from sitting "Rebuilds" those seats that are simply too soft or unsupportive. Has proven to be excellent for autos, airplanes, bus seats, chairs, and sofas Made with an adjustable (bendable) steel frame, rubber strap supports, and soft fabric