ThermaCare Multi-Purpose Muscle HeatWraps are designed to adhere to multiple locations on your body, providing flexible, long-lasting pain relief wherever you need it. Single-use HeatWraps can be applied to sore muscles so you can power through your day with long-lasting heat relief. Patented heat cell technology penetrates deep to the source of pain, increasing blood flow to promote muscle pain relief while accelerating healing. Multi-Purpose Muscle HeatWraps are specially designed to help relieve pain associated with muscle aches, stiffness, tightness, muscle spasms and cramps. ThermaCare Multi-Purpose Muscle HeatWraps are designed to adhere to multiple locations on your body, providing flexible, long-lasting pain relief wherever you need it. Single-use HeatWraps can be applied to sore muscles so you can power through your day with long-lasting heat relief. Patented heat cell technology penetrates deep to the source of pain, increasing blood flow to promote muscle pain relief while accelerating healing. Multi-Purpose Muscle HeatWraps are specially designed to help relieve pain associated with muscle aches, stiffness, tightness, muscle spasms and cramps.