Made to an ergonomically beneficial angle. - Designed to support the back of the knee and heel whilst allowing the calf to relax - Takes pressure from the lower back and stimulates circulation - Back pain is relieved and symptoms of oedema, varicose veins and fatigue are greatly eased - Washable polyester fleece/velour cover - Size: 46x63x17x12cm (18x25x6¾x4¾").