... , hunters, fishermen, golfers, or people who work or play in the cold for long hours. Body WarmerSize: 130x100mmHeating Last: 12hours,Average ... , Vermiculite, Activated Carbon and Salt.etcDirections:Open the outer package and expose the pack to airRemove the paper back and put it on ... Air Activated No batteries, no microwaves, no fuels Adhesive BODY WARMER HAND WARMER