The unique shape of the wedge (12 degree incline) fits perfectly between the shoulder supports of each Balanced Body Reformer. Perfect for use with patients who have suffered from shoulder, neck or facial injuries, or who are unable to lie straight due to dizziness or posture. Made from EVA foam with closed cells. Due to its firmness, the Wedge is also for use in the office as a footrest under your desk. Free from chlorides, phthalates and PVC.