Swivel car seat improves car time! Swivel seat cushion swivels a full 360° for easy entries and exits from your car. Memory foam car seats are soft, flexible and conform to your body for custom comfort! Non-slip backing grips seat securely without straps, easily transporting from car to desk or dining room chair. Polyester cover; spot clean. 15 1/2" dia. x 1/2" H.