The shoulder strap is a medical device, mainly used to fix the shoulder joint, relieve shoulder pain and support the recovery of shoulder injuries. The characteristic of the shoulder fixation belt is that it can suppress the movement of the shoulder, reduce the pressure on the joints, and prevent further expansion of the injury. Additionally, it keeps the shoulders in the correct position to speed recovery from injuries. Shoulder straps are widely used in the treatment and prevention of various sports injuries, muscle strains, early rotator cuff injuries, and joint laxity.also