*Compressed Foam 15.5 x17.5 x1-7/8 * At home in the office or in your car you�ll enjoy the unsurpassed comfort and support of our Foam Cushion * Improves seating safety by preventing slipping * Useful for prolonged seating on hard surfaces * Helps maintain an upright sitting position * Made of quality foam for consistent support comfort and durability * Removable polycotton cover for easy cleaning