Tilts the pelvis to the optimum 11 degree keeping the spine in its natural position. - Significantly decreases pain in the lower back and legs - Supplied with coccyx cut out and fitted with fixing strap - Size: 36x36x10cm (14x14x4"). If this product is showing as out of stock (red dot), please note that as we manufacture this product on site it can normally be manufactured and available within 2/3 days of receiving your order.