Jaysuing Hand Warmer (Single Pack) Portable, Comfortable, Self-Heating Warm Patch, Abdominal Heat Patch, Warming Patch For The Abdomen And Body

Our hand warmer (single pack) contains iron powder, salt and activated carbon. It can release heat through chemical reactions, raise body temperature, warm hands and relieve local pain. Its usage method is very simple: After opening the package, take out the patch and stick it on the inner side of the clothes. The patch will start heating within 15 to 30 minutes and the heat preservation effect can last for 10 hours. The high temperature that can last for 10 hours warms your hands, body and feet.