Seat Cushion By Pro For Sho - Good for Car Truck and Office Chair - Coccyx Tailbone Lumbar Support - Lower Back Pain Relief - Orthopedic Seat Cushion - Reduces Sciatica Pain - Increases Circulation Brand New Ergonomic Design: this is a great solution for residual pain. Now you can sit longer with much less or even no pain at all. Super Comfortable: especially for car seat, wheelchair, office chair and plane seat. Breathable Cool Mesh Cover: it minimizes moisture and keep you always cool for prolong seating. Anti-Slip Bottom: the new anti-slip fabric technology ensures you always stay in place regardless of any kind of contact surface. 100% Money Back Guarantee. It's simple when buying our product: if you don't like the product, we refund you with no questions asked.