This elbow epipoint strap by Bauerfeind is used for treating inflammation of the tendons on the outside of the elbow (epicondylitis). It works by applying pressure to the affected forearm muscle. The armband consists of a plastic liner with an integrated steel strap. Rotation of the adjustable pad enables the armband to be worn on both the right and left arms. Pressure can be changed via the Velcro adjuster strap. One size fits all.