Luxfit Memory Foam Seat Cushion Donut Style cutout for tailbone pressure relief and comfort during prolonged seating. Seat Cushion Superior comfort Seat Cushion for a chair, car seat, plane or wheelchair. Coccyx Cushion Machine Washable Cover, Comes with a removable cover that is machine washable, granting easy cleaning. Tumble dry on low or air dry for best quality results. Cushion Ergonomic design Seat Cushion makes sitting more comfortable, reduces pressure on sensitive areas, promotes healthy posture, improves spinal alignment, reduces pressure related pain and protects from further injury Full 2 year Warranty! Orthopedic Seat Cushion. Memory Foam Seat Cushion. Lumbar Support Pillow