ObboMed SS-2710N 360&deg; Rotation Auto Swivel Seat Cushion, Specially Compact Size for Car Use to Suit Car Seat Space, Washable Cover, Easy Movement, Smaller Size 12&rdquo; x 3&rdquo;, 1 Piece Designed with a smaller size, diameter of 30 cm / 12 inches, makes it perfect to use in cars Wooden base. Ball-bearing roller mechanism allows 360 turning without binding Durable flexible base conforms to seat Removable and washable cover 3.5 cm/ 1.4 inch thick padded seat holds up to 130 kg/ 300 lbs Car use special smaller size, diameter of 12 inches / 30 cm, makes it perfect to use in cars. Ball-bearing roller mechanism allows easy movement; 360 smooth turning without binding. Reduce strain and stress on your back and hip while getting in and out of car seat. Non-skid wooden base is strong and durable after long-term use. Flexible and easily conforms to most chairs. Portable and lightweight 1.4 inches / 3.5. cm thick padded seat can hold up to 300 lbs /130 kg. Come with a washable cover for personal hygiene maintenance. Time-endurance vehicle essentials for those who suffer tailbone, back, and hip injuries. 1 x Swivel Seat Cushion Diameter: 12 x 2 inches (1.4 inch padded seat, 0.6 inch wooden base) / 30 x 7.5 cm Color: Dark Blue Pattern Material: Jacquard fabric, wooden base, and polyurethane foam Latex: No