Coccyx Seat Cushion for Home, Office, Car, Truck, Driver, Driving&hellip; High Quality Durable Ergonomic Orthopedic design, Fully resilient Space-Age NASA 100% Memory Foam Auto, car, truck, airplane, office, wheelchair 100% polyester seat cushion, removable, washable Tailbone, Coccyx, Back and Spine support, comfort and pain relief - Ok up to 250 pounds Mold to fit in 24 to 48 hours, medium hardness, resilient, will not flatten or stay flat Return for any reason, refund within 2 business days (usually within hours), no questions asked