Buy the Memory Foam Coccyx Cushion Grey at Michaels.com. Does your body need relief from pain caused while sitting for long periods of time? Get ergonomic support and relieve spinal cord & lower back pain if you suffer from any of the following: Sciatica Herniated, Degenerated or Bulging Discs Pregnancy Discomfort Poor Posture Leg & Buttocks Soreness or Numbness Bruised or Injured Tailbone Hemorrhoids Joint Pain or Hip Arthritis Designed with a cutout in back to allow your spine a space to rest while alleviating pressure. Contoured for comfort. High quality, durable memory foam forms to your body, distributes weight evenly, and returns to original shape when not in use. Hygienic, machine washable, removable smokey grey color zippered cover is made of velvety soft polyester. Remove cover & wash separately on gentle cycle. Tumble dry low. Do not bleach. Disclaimer: This information is for educational purposes only, and is not intended to diagnose, treat, cure or prevent any disease or condition, nor is it intended to prescribe in any way.