This arm support cushion allows the immobilization at 15° or 30° external rotation. The modular system is integrated with an optional external rotation wedge which is used to rest the arm at 30° external rotation. It has straps to ensure better fitting. It is easily worn because of its proven closure system. The inherent training ball allows the flexible forearm exercises. It is widely used after the surgery on the rotator cuff, after the subacrominal extension (according to Neer), for relaxation of the limbus and of the capsule sections, postoperative immobilization after the implantation of shoulder prosthesis, for the impignement syndrome and acute and chronicle bursitis. It comes in blue color.