Relieve Back Spain by Reducing Pressure on Spine and Coccyx. Product: Zaraku Seat Joy CushionItem NO. RX-215Size: 40x40x8/6cmFeatures:Helps You Sit Comfortably, Even for Prolonged periods of time. Relieve Back Spain by Reducing Pressure on Spine and Coccyx.Fits most car seats, office chairs or easy chairs.Oeko-tex 100 and BSCI certificate are available. Zaraku Seat Joy Cushion