The Orthologics Ring Pillow cushion brings new heights of unparalleled comfort and relief to your everyday life. Made from specially designed molded memory foam, the Orthopedic Knee pillow provides ergonomic raised support to your Rear and Tailbone. Ideal for individuals who suffer from Hemorrhoids (Piles), Pregnancy, Fibromyalgia, and Sciatica. The O Shape Doughnut Pillow relieves uncomfortable rear end pain, alleviating pressure from your bottom. This aids further in recovery and ensures irritation is kept minimal. Designed from long-lasting memory foam which molds to your body's natural contour for a perfect custom fit. Fitted with a removable/washable zip-off soft cover.