Size Medium Forearm Circumference: 9� - 11 DonJoy EpiForce German Engineering & Knitting Technology Premium Elastic Knitted Support - Elastic knit elbow sleeve with epicondyle silicone inserts offer compressive support.3D contoured knit for effective compression. Anatomically contoured design with targeted compression & support. Wrinkle-free non-slip fit for comfortable wear.Breathable material. Indications: Chronic post-traumatic or postoperative inflammation of the elbow joint. Tennis elbow (lateral epicondylitis). Golfer?s elbow (medial epicondylitis). Bursitis. Removable strap to adjust compression level. Comfort zone in elbow crease for comfort of wear. Silicone inserts Help relieve pressure on the elbow muscles.