Get fast, temporary relief of pain with ThermaCare Heatwraps Joint Heatwraps. They have an advanced x-shape design that provides flexible, long-lasting joint-pain relief, wherever you may need it. These Thermacare multi-purpose joint pain therapy heatwraps contain patented heat cell technology. They penetrate deep to the source of pain, increasing blood flow to help relieve pain and promote joint repair. ThermaCare Heatwraps Joint Heatwraps are activated by air and last for up to eight hours. You can apply them to sore joints and muscles, so you can take long-lasting heat relief with you throughout your day. They also feature four adhesive points to keep the heatwrap in place. They're suitable for common pain often associated with joint aches, stiffness, tightness and arthritis. Suggested Use: Instructions: Tear open pouch when ready to use (it may take up to 30 minutes to reach therapeutic temperature). Peel away paper to reveal adhesive side. Place on pain area with adhesive against the skin. Refer to do not use section for areas where not to apply. Attach firmly. Be careful when applying to the wristdo not overlap the heat cells. Place wrap flat. Do not fold, overlap or bunch the heat cells as your risk of burn is increased. If 55 and older: When applied over the lower back/hip, wear ThermaCare over a layer of clothing, not directly against your skin. When applied over the knee or elbow, wear ThermaCare over a towel or cloth such as a washcloth, not directly against your skin. Wear up to 8 hours. Do not wear for more than 8 hours in any 24-hour period. Store at room temperature. Discard after use. UPC: 305733017241 Weight: 0.69 lbs RKU: WAL40816715