MAXIMUM RELIEF AND COMFORT: Reduces pressure on pelvic, coccyx, lower back, perineal, and anal region. Relieves pain from hemorrhoids, pressure ulcers, prostatitis, pregnancy, child birth, and lower back pain.;DURABLE: Made of dense premium comfort foam. Will not flatten out with prolonged use. Will not deflate like inflatable donut cushions. Non-slip bottom ensures the cushion stays in place and will not shift or slide on any surface.;ERGONOMIC: Promotes good posture and healthy weight distribution for hours of comfortable sitting.;USE ON ANY SEAT: Great for use on any chair, car seat, plane, and wheelchair.;EASY CLEANING: Removable velour cover is machine washable for easy cleaning.