This wedged shaped cushion alleviates pressure on the coccyx thus relieving lower back pain. Ideal for anyone spending any length of time sitting down. Size 356 x 432mm 14 x 17”. 89mm 31/2” high at the back tapering to 19mm 3/4” at the front. Weight 400g. For further information please contact your local shop or call 01908 644133. We look forward to hearing from you.