Memory Foam Back Pain and Coccyx Medical Memory Foam Seat Cushion USA Memory Foam Medical Seat Cushion Safe and Healthy with Washable Soft Plush outer cover. Usage: The cushion is perfectly fit to most chairs, providing adequate and comfortable support and prevention of hemorrhoids, cracks, joint pain, sciatica and surgery and postpartum recovery. It will provide support to help you maintain proper posture, keeping your spine in a natural curve. and lumbar and coccyx support to make long-time sitting easier. -- WARNING: Before you buy the product, please check the seller name first which is (HT Medical ) if not, do not buy the product, if you purchase we are not responsible for the quality of the product you received, please note