DescriptionThermaCare heat wraps are made of soft layers of cloth-like material with patented heat cell technology, that contain natural, heat generating ingredients (iron, charcoal, table salt and water). When exposed to oxygen in the air, these ingredients react to produce heat. Thermacare pain relieving heatwraps provide effective relief if muscular and joint pains associated with overexertion, strains, sprains, and arthritis. ThermaCare gets warm and stays warm for at least 8 hours, penetrating deep to relax tight muscles so circulation flows in- helping pain flow out. Each wrap is for one-time use only and can be disposed of in the normal household waste. Thermacare delivers constant, long-lasting therapeutic heat. When you open a ThermaCare pouch, the wrap will begin to warm immediately and will reach its therapeutic temperature 40°C within 30 minutes. ThermaCare delivers at least 8 hours of controlled, therapeutic heat to provide up to 24 hours of effective relief right at the source of muscular aches. ThermaCare heat wraps provide all the benefits of heat therapy with none of the inconvenience - no bulky hot water bottles and no odours or stickiness from ointments. ThermaCare provides at least 8 hours of consistent, low-level therapeutic heat that relaxes tight muscles and so helps relieve muscular pain. ThermaCare: Is proven effective in relieving muscular pain in clinical trials. Has unique, patented heat cells that deliver constant, long lasting heat. Is made of soft, cotton-like material that is comfortable to wear against your skin, under normal clothes and are odourless and non-greasy. Provides convenient and portable heat and is specially designed to fit the body. Is a topical treatment and provides a real alternative to oral analgesics. Thousands of satisfied users in USA and Germany.