Seat Cushion - Firm Orthopedic, Coccyx Cushion with Natural Balance Ball Relieve Back Pain, Coccyx Pain, Sciatica & Corrects Postures. Supports Lumbar - Ideal for Office Chair, Dining Chair, Kitchen Chair, Car Seat, Wheelchair, Stadium. High Density Memory Foam, Strong Grip on Any Surface - Specialty Seat Pad - Medically Proven Orthopedic Comfort Cushion, Thermo-sensitive Premium Organic Quality Foam - Easy to Carry Water Resistance Box. Sure Shot Results or 1 Year Hassle Free Money Back Guarantee!