This Deluxe Swivel Seat Cushion is ideal for getting in and out of cars or great for use at home or office chairs. The padded swivel seat cushion rotates 360 degrees for smooth, easy movement in any direction while seated. This swivel car seat cushion helps prevent back and hip strain because the comfortable polyfoam padded cushion is 15" in diameter and 1-3/8" thick. Chair cushion is portable and lightweight weighing just 2-1/2 lbs. Cushion has a removable, machine washable cover.