1. Name: Sankang sleeve for elbow and sleeve for ankle/knee heat pack 2. Special Features: 1 Made from wood and iron powder 2 Non-poisonous, not flammable, can't be put into mouth 3 Easy to use, can reach a high temperature in a short time and keep for a long time 4 A good companion for outdoor work, activities and sports, such as camping, hunting, fishing, skiing and skating 5 Stimulates the circulation of the blood, relaxes muscles and joints, reduces swelling and eases pain 6 Effective to ease stomachaches, back and leg pain and pain in other parts of the body, especially caused by exposure to cold wind 7 Application scope: Myalgia, lumbago, internal injury caused by overstrain, sciatica, sprain, contusion and pain caused by cold Stomachache, dysmenorrhea, warming uterus of lying-in women Warms uterus after induced abortion, fullness of abdomen and enteritis 8 No need for external energy 9 Ideal when transporting little pets and tropical fish and plants which need sustained warmth 10 A necessary part of a first-aid kit 11 Can be put in the soles of your shoes and socks to keep your feet warm 3. Specifications: Max. temperature 62centigrade Avg. temperature: 52centigrade Heating duration:12hrs size of outer pack:180x125mm size of inner pack: 135x90mm 4. Caution: 1. Do not apply directly against skin as burns may occur. 2. Do not swallow the contents 3. Supervision is needed when using the warmers on infants, children, elderly and people with physical disability or handicap 4. Do not use while sleeping 5. Remove warmers immediately if they become uncomfortable or too hot.