Aylio Comfort Foam Wedge Coccyx Cushion for a Car Seat or Chair Reduces pressure on the coccyx, tailbone and hip bones while driving/sitting Designed to fit snugly in a car seat or office chair for maximum comfort Promotes healthy weight distribution, posture, and blood circulation Assists in the relief and treatment of lower back pain, sciatica, and pressure sores Removable velour cover is machine washable and allows for easy cleaning