sheltin Non-Slip Coccyx Orthopedic Memory Foam Office Chair and Car Seat Cushion for Back Pain and Sciatica Relief and Tailbone Support (Gray) INSTANT BACK PAIN & SCIATICA RELIEF: Ergonomically designed, provides maximum support and comfort while reducing pressure on the coccyx / tailbone and promotes healthy posture. Supports recovery from lower back problems, helps with sitting pain due to sciatica, herniated discs, tailbone injuries, pregnancy back pain, hip pain, hemorrhoids and other spinal issues Removable velour cover is machine washable and allows for easy cleaning ALL-IN-ONE PREMIUM HIGH-DENSITY MEMORY FOAM CUSHION: Sheltin's all-in-one features are unrivaled: NON-SLIP rubber bottom, BUILT-IN HANDLE for easy transport and machine-washable zippered velour cover for EASY CLEANING. Made with premium quality 100% memory foam to provide long lasting comfort for hours, superior to other cushions it won't go flat over time Superior comfort for a office chair, car seat, truck, plane, wheelchair, floor, bench or bleacher FULLY GUARANTEED: Customer satisfaction is our top priority, money back guarantee if you are not 100% satisfied, no questions asked