Range of Motion dial ensures quick locking mechanism for immobilization at 90,100 & 110. It provides quick extension & flexion setting from 0 - 120 Flexion and 0 - 90 Extension. Semi flexible arm cuffs are durable with well ventilated 3D cushion Pads, these Pads can be easily removed for washing and hygiene. Reverse buckle strapping gives an effective grip. Arm Sling allows customization in length. Position of Shoulder Pad can be adjusted. The product is easy to apply and remove and ensures no fatigue even after prolonged use. For correct size please measure the circumference at a distance 6" from the wrist along the arm and refer corresponding size in size chart.