High Density Rebound Memory Foam---Designed with the highest quality fabric that snuggly fits over the foam cushion and is easily removed for cleaning. With an enhanced memory foam, the wedge cushion will contour to the body's pressure points to help alleviate pain and provide the best comfort and support.Back Pain and Sciatica Relife---Our Coccyx Seat Cushion has proven to restore your spine's natural lumbar curve to the correct posture. You will relief from lower back pain, numbness and pain from sciatica, herniated discs, tailbone injuries, back pain from pregnancy, hip pain, hemorrhoids, and pressure sores.Perfect for Anyplace---Provides instant comfort on any hard surface. Office chair, kitchen, dining room, living room, patio and even the wheelchair. Great for outdoor sporting events, truck drivers, pilots, frequent travelers. Also provides comfort to pregnant women.Washable and BreathableSit comfortably anywhere you might be.