OUHOE Hand Warmer Value Pack, Portable Warm Disposable Heating Baby Paste Winter Cold

Our disposable hand warmers contain vermiculite and activated carbon. It can penetrate oxygen at a rate that is not too slow, without temperature. It won't let the oxygen penetrate too fast, lose heat and burn. Its use method is very simple: 1. After opening the package, take out the patch and stick it on the inside of the clothes. 2. The patch will start to heat up in 15-30 minutes. 3. The insulation effect can last for 10 hours. And can be applied to the skin naturally long-lasting heat without the need to shake or knead warm hands/antifreeze.