Doctor Recommended! Thera Freeze™ is a safe, non-invasive, drug-free method of pain management. Just place the protective pad & unit where it hurts… back, shoulder, hip, knees, etc. Secure with the adjustable Velcro™ belt and get targeted relief, as it stimulates the body’s natural pain killers instantly. Includes 9 – protective pads, 1 - 41” x 3” Velcro™ belt, 1 - power adapter and user manual.