Heat Factory Warmer Pack: 12 Pair Hand, 6 Pair Toe, 2 Pair Insole and 6 Large Body Warmers Pack of 12 pairs of Hand Warmers, 6 Large Body Warmers, 6 pairs of Toe Warmers, and 2 pairs of Foot warmer insoles Warmers provide protection and instant and long-lasting warmth to your body in cold outdoor activities Simply open the outer package and expose the warmer packet to air for an instant heat source Safe, non-toxic and odorless Heat Warmers are pre-mixed with a biodegradable mixture of iron powder, charcoal, salt and vermiculite Unopened, the warmer has a shelf life of three years or more