Vive Max Gel Seat Cushion - Orthopedic Coccyx Pillow for Car, Truck Drivers, Wheelchair, Airplane, Stadium, and Office - Firm Pad for Sciatica, Back and Tailbone - Comfortable Pain Relief PRESSURE RELIEF CELLS: Cell design relieves pressure spots by evenly dispersing body weight. Enjoy sitting longer with less pressure on coccyx, tailbone, hip bones, and spine ANTI-SLIP BOTTOM: Non-slip bottom material prevents cushion from moving in your seat MAX GEL: Ideal blend of comfort and support that keeps you cool while conforming to your body. Individual cells provide a cushioned massage while sitting INCREASE CIRCULATION: 45 individual gel cells help increase circulation and air flow while sitting resulting in the best gel seat cushion, will not flatten out over time VIVE GUARANTEE: We stand by our products with excellent customer service and a 60-day money-back guarantee