This product can continue to warm the body and relieve rheumatism and colds. The crowd provides cold and warm care for the common cold, women's menstrual period, and middle-aged human rheumatism and joint pain. It is suitable for heatstroke prevention and cooling in outdoor sports such as field work, mountain camping, polar exploration, winter tourism, skiing, fishing, etc.Just remove the paper from the back and stick it to the sole/back/shoulder or put it in your pocket. It heats up quickly within minutes, averaging 53 degrees Celsius with a maximum of 65 degrees Celsius, and cools down to outside temperature in about an hour.The product should be placed on the outside of the underwear, not directly on the skinBe careful of low temperature burns. If the body is heated for a long time, symptoms such as erythema and blisters may occur. The maximum heating temperature is 66, do not use when sleeping at nightChildren, disabled or sensitive skin should pay more attention to use when low temperature scald occurs.Note: Do not apply directly to human skin, but to the outer layer of clothing that requires heating or compression.Material: iron powder + activated carbonColor: Yellow/PinkSticker size: about 10 x 9.5 cmHeating time: 12 hoursMaximum temperature: 65 degrees CelsiusPackage Contents:10 x Warm Up Sticks