TheraPearl ThermHot 3 neck/back/shoulder/wrist heating patch + 1 free is a heating patch that can be used to relieve strained, tired or cramped muscles by releasing comfortable, well-tolerated heat over a period of approximately 8 hours. It is made of a soft material that is pleasant to the touch and has compartments that contain natural elements such as iron powder, charcoal and salt, which give off heat when they come into contact with oxygen. Its profiled shape adapts to different areas of use. The positive effects of heat are manifold: it stimulates blood circulation: heat improves blood circulation by expanding the blood vessels. The result is an increased supply of oxygen and vital nutrients to the cells of the muscle tissue, it improves the elimination of secondary metabolites: the waste products produced by the tissues and muscles are more easily eliminated thanks to better blood circulation, it relieves pain: heat reduces tension, relieves pain , relaxes and improves mobility. Dimensions (in cm): 29 x 9. Dermatologically tested. Clean and wipe the affected area thoroughly. When ready to use, take the patch out of its pouch. Remove the protective film. Place the strip over the painful area, making sure it adheres well to the skin over its entire surface. (It may take about 30 minutes to reach the expected temperature). Wear the patch for up to 8 hours. Seek medical advice for patients with circulatory problems, heart disease, rheumatoid arthritis, gestational diabetes. In case of direct contact (skin and eyes) with the material contained in the product, rinse with plenty of water and seek immediate medical attention. If accidentally ingested, seek medical attention immediately. Do not heat the medical device in any way. Keep out of the reach of children and pets. This product can cause burns. The skin to which the patch is applied should be examined for burns or irritation. Do not use on heat-sensitive parts of the body/under tight clothing/belts to avoid risk of burns. Don't sleep, lie down, or lean on the pavement. Do not use for more than 8 hours in any 24 hour period. In patients over 55 years of age, the risk of burns increases. In this case it is preferable to use the product on clothes and not to sleep. Be careful not to fold or overlap the patch to avoid the risk of burns. Discontinue use in the event of :discomfort, irritation, excessive heat, burning, swelling, redness or other persistent changes in the skin to which the product has been applied, failure to resolve the problem that required the use of the product. Do not use in case of :combined use with the application of creams, ointments or other warming products ,damaged skin, bruises and swelling that have occurred within the last 48 hours,people who cannot remove the product themselves, including children,leakage of the contents of the patches and/or if the product is damaged, do not use at night. May cause burns if used improperly, mRT scan. Indication: Relief of muscular pains. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required