Dexter Training Model Surgical Simulator components: left shoulder, lateral decubitus, anterior view. The skin, elastic and soft, is made of polyol and isocyanate. All the bony components (acromion and coracoid tip, glenoid, humerus) are made of polylactic acid (PLA) 3D printed. Labrum and biceps tendon are made of white bioflex. The semi-elastic rotator cuff is made of White Jacquard tissue and the muscle is made of silicone.