Seat Cushion for Desk Chair - Back Pain, Tailbone Relief, Coccyx, Butt, Hip Support - Ergonomic Office Chair Sciatica Car PillowOFFICE CHAIR CUSHION TAKES PRESSURE OFF: Sit in comfort as your tailbone hovers above the U shaped rear cut out, preventing lower back soreness and discomfort from prolonged sitting. ERGONOMIC SEAT FOR HIP AND BACK PAIN RELIEF: This tailbone cushion gently cradles your buttocks, while the wedge design promotes healthy spine alignment and hip support. ORTHOPEDIC BUTT COMFORT COCCYX CUSHION: Measuring 18x14x2. 5 inches and weighing only 1 pound, this