Make sure this fits by entering your model number., 100% Polyester Machine Washable Cover, 100% Polyurethane Inner Foam Core, Tried and Trusted, Physical Therapist Endorsed Brand ? We have the seal of approval from leading physical therapist, founder and owner of Therapy Network, Inc., Bob Schrupp, PT, MA and Brad Heineck, PT, C.S.C.S. Don’t compromise with inferior pillows when it comes to your health and well-being, Stop Suffering From Painful and Debilitating Conditions ? If you find that you’re unable to sit for long periods because of hemorrhoids, tailbone pain, an accident or post surgery then you don't have to suffer any longer. The seat cushion for pressure relief makes any hard surface more comfortable and with generous dimensions of 17.5 x 13.8 x 2.75 inches this butt pillow is suitable for everyone, Orthopedic Ergonomic Tailbone Pain Relief Cushion ? If you struggle with lower back pain or sciatica you’ll benefit from a carefully considered coccyx cushion cut out; the perfect donut pillow for tailbone pain. Also effective as a sitting pillow and back support office chair cushion. Whilst this cushion helps many, it may not alleviate all pains and ailments and performance will vary from person to person,