Description: Material: High Density Foam + Gel Suitable for most car seat, wheelchair, home chair, office chair and more. Large enough to cushion your entire seating area yet small enough to remain portable and convenient. Great pillow for lower back pain, hemorrhoid sufferers, those who sit for extended periods of time, and more. Helpful to relieve symptoms of coccyx / tailbone injury, sciatic nerve, lumbar or lower back pain, haemorrhoids, pressure sores. Size(LxWxH): approx. 40x36x3cm/15.60x14.04x1.17 inch Package Includes: 1 Piece Gel Foam Car Seat Cushion Note: Please allow 1-2cm(0.4-0.8 inch) size difference due to measurement. Thank you!