ObboMed&reg; SU-2500 Dense Foam Orthopedic Donut Seat Cutout Cushion (16&rdquo;/40cm) for Pelvic Pressure Hemorrhoid, Prostate, Pregnancy, Perineal, Postnatal Tailbone Pain Relief 1 x Donut Seat Cushion 1 x Color insert Puncture-proof molded foam evenly distributes body weight evenly and promote spine alignment greatly. Donut design allow pain area to have proper blood circulation for effective healing process and prevent from swelling and inflammation. Relieve pressure on coccyx and lower back for prolonged sitting. Alleviate the pain and discomfort associated with hemorrhoids and other anal perineal or other post-surgical conditions. Ergonomically contour to hip shape for maximum comfort. Maximum weight capacity up to 300 lbs / 135 kg. Come with a removable and washable poly-cotton cover for personal hygienic maintenance. Dimensions:Diameter 15.8 x 3.2 inches / 40 x 8 cm Color: Blue-black Check Material:Polyester cover, polyurethane foam Latex: No