Coccyx Seat Cushion By CushionCare- Made Out of 100% Memory Foam for Orthopedic Use. Reduces the Pressure on the Spine and Tailbone and Provides Lower Back Pain Relief. Highly Comfortable and Portable. Best Used on Office Chairs, Car and Truck Driving, Wheelchairs, Airplane and Much More. Gray Color Lifetime Guarantee Provided! Coccyx Seat Cushion By CushionCare- Made Out of 100% Memory Foam for Orthopedic Use. Reduces the Pressure on the Spine and Tailbone and Provides Lower Back Pain Relief. Highly Comfortable and Portable. Best Used on Office Chairs, Car and Truck Driving, Wheelchairs, Airplane and More, Comes with an Extra Cover, Gray Color, Lifetime Guarantee Provided