The Theracane Massager is a handheld self back massager that provides temporary relief from muscular tension, stiffness, tenderness, and soreness. The Theracane is a massager hook that makes it easy to get to hard-to-reach spots, increasing circulation and soothing away stress and knots in your back. This back massager stick is ideal for people recovering from muscle surgeries or chronic, nagging injuries from the past.