Heal Tennis Elbow with Patented Thermal Therapy! Worn just below the elbow joint while at rest or during activity, this armband applies focused compression to the tendon without restricting circulation. Eliminates stress and helps reduce inflammation and pain. Includes a patented gel cell that can be removed and heated/chilled for thermal therapy on acute and chronic injuries. Helps reduce nagging pain and speeds healing. Ideal for wear during athletic activity, work, or at rest. Complete wearing and care instructions are included. Available in Black or Beige. Fits Right or Left Arm. For proper sizing, measure around the forearm below the elbow. Universal Size fits forearms 11 - 16".