The THERABAND FlexBar is clinically proven to increase tendon strength and reduce elbow pain for those who suffer from tennis and golfer's elbow. This twist bar is designed to stretch the upper extremities to help reduce muscle soreness and joint pain. Included with the FlexBar is an exercise guide assisting users in proper utilization of the resistance training bar. Designed with a rigid rubber texture, THERABAND FlexBar improves grip and upper extremity strength. The FlexBar is also used for oscillation, soft tissue, and joint mobilization. The latex construction contains maximum tensile strength for durability during twisting, bending, and oscillating exercises.