Coinlin Orthopedic Tiger Memory Foam Seat Cushion - Relieve's Back Pain, Sciatic Nerve Pain, and Numbness, While Adding Superior Comfort to Your Car, Home, and Office Now Provides 3 1/4" of memory foam comfort to any seat, and is a pain reliever for people who suffer with back pain from sitting for prolonged periods of time. The coccyx cutout reduces stress on the spine, which provides pain relief while sitting down on uncomfortable chairs. Its contoured shape distributes the body's weight evenly, which adds support for the lower back, allowing it to rest easy while sitting. Its temperature sensitive memory foam adds superior comfort, to improve circulation to the legs, which help's with ankle swelling, tingling, numbness, and legs falling asleep. Made with the highest quality of eco friendly memory foam, it reduces pressure on sciatic nerves, helps to promote healthy posture, and better spinal alignment. You also receive a Free Report about pain relief from tooth aches, and your shipping is free when you buy 2 or more.