ZB McCartys Sacro Ease Tapered Lifting Seat Car Seat Support Cushion GREY This Model has 15" Width, 15" Depth and 19" Height Poly foam seat base, Tapered 3" to 1" back to front. Has proven to be excellent for autos, airplanes, bus seats, chairs, and sofas "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