Product Features and Specifications: Overuse of the muscles in the arm forearm and hand often leads to elbow pain a condition that can be very painful and can affect your normal way of life. The elbow brace supports weak muscles and provides comfortable compression to relieve pain. The elbow brace can also be used as an aid in the prevention of sports injuries and to prevent future injuries. Indications: For pain caused by arthritis weak and strained elbows and median nerve entrapment at the elbow. Elbow brace size specifications: Small Medium Large X-Large XX-Large