The Tri-Band Tennis Elbow System is a elbow support that provides treatment and relief or symptoms due to tennis elbow (medial or lateral epicondylitis) and other sports related injuries. 3-in-1 Memory Foam® pad compresses extensor and flexor muscles to reduce elbow vibration and associated pain. The Tri-Band Elbow System air pad creates greater pressure at the involved site. The Tri-Band Tennis Elbow System magnet pad reduces pain and speeds recovery. It is universally sized.