Heating padsProduct efficacy:Cure gastroenterological disease, diarrhea, stomach ache, etcCure dysmenorrheal, abdomen recovery, etc.relieve the pain of arthritis, scapulohumeral per arthritis, waist and leg pain, rheumatism, Rheumatoid, Coolness of extremities, and all kinds of pain Activate blood circulation and recover bruise in wound treatmentWarm up in skiing, fishing, hunting, outing, field work Warm up in massage CharacteristicAverage temperature: 53CMaximum temperature : 68CSafety and no pollutionNatural raw materialScientific prescription. No stimulus to skin.Heating simple, No need outside energy, plug, hot waterUltra thin ultra light, easy to carry, Suitable for outdoor sports Working theory:Heating material is a mixture made up of iron, activated carbon, mineral salt and water When heating material contact the oxygen in the air, it begin oxygenation, this process will continually give out heat for 10 to 12 hours at leastThis process will begin only after your breaking the vacuum packing How to use:Take out the internal product by tearing up the package. Take off the protective tissue and apply it on the underwear where the body part needs warming up. stick in the human body's shoulder, back, waist, stomach and related joint parts.After use, take off it from the underwear and throw it into the trashbin.scientific prescription. No stimulus to skin. Specifications：Big warmer pad: 10 x 13cm weight: 45 gSmall warmer pad: 7 x 9cm weight: 26 g