Targeted heat therapy: The FlexFit Sunbeam heating pad has a long, slim Design that wraps easily around multiple areas of the body like the arm, elbow, wrist, ankle, and lower leg, providing targeted pain Relief Stays in place: flexible heated wrap stays in place with elastic ends that fasten securely to the pad for a snug fit and hands free use Clinically proven treatment: heat is clinically proven to relieve pain associated with muscle tension and stress; It increases blood flow to the source of the pain, which accelerates tissue healing