Donjoy Immo Post-Operative Arm and Shoulder Immobilizer Brace The Immo Donjoy arm and shoulder immobilizer is designed to offer support and comfort to post-operative patients or patients with neurological conditions. Made of Terrycloth™ material for durability and comfort, it features a hook-and-loop closure that makes putting on easy. The ergonomic design promotes correct posture and optimal weight distribution. Available in an ambidextrous version and in six different sizes, it adapts to various physical needs, making it a versatile and practical device.