Body Warmer ( Heating pad, Heat Packs, Warmer pack, Instant Heating, Disposable Body Warmer)  Size: 130X100mm  Heating Last: 12hours Average Temp: 52C  Max Temp: 62C  Country of Origin: China  Material:  Iron Powder, Water, Vermiculite, Activated Carbon and Salt. etc  Application:  Designed for skiers, hunters, fishermen, golfers, or people who work or play in the cold for long hours. Also Soothing relief for muscle sprains and strains, joint aches and menstrual pain.  Directions:  1. Open the outer package and expose the pack to air  2. Remove the paper back and put it on the inside cloth.  3. Dispose of used pouch with regular garbage, it's natural ingredients are environmentally safe.