1. Made from salt and iron charcaol.
2. Non-poisonous, not flammable, can't be put into mouth.
3. Easy to use, can reach a high temperature in a short time and keep for a long time
4. Duration: 8hours
5. Ave temperature: 52 C
6. Dimensions: 100x70mm
Instantly warm your hands on cold days, whether you are out pushing your limites in the extreme terrain on the slopes or sitting quietly on ice waiting for a lake trout to bite. Hand warmers are an all-natural package of powerful heat that can provise a ful day of warmth to your hands. Non-toxic and disposable, keep them in your glove compartment, backpack, purse, anywhere you might get caught in the cold.