The Heat Factory hand warmer is a soft, lightweight pouch containing a biodegradable mixture of iron powder, charcoal, salt, sawdust, and vermiculite. When exposed to the air, an oxidation process takes place that generates heat. Unopened, the Heat Factory Warmers have a shelf life of three years or more.
Keep the heat flowing through your cold hands with the Heat Factory Hand Warmers
Lightweight pouch contains a biodegradable mixture of iron powder, charcoal, salt, sawdust, and vermiculite
Air exposure causes an oxidation process to take place that generates heat
Ideal for placing in gloves, mittens, pockets or headwear
Air-activated warmer lasts up to 10 hours
Safe, odorless, and non-toxic
Includes 3 hand warmer pairs
Weight: Approximately: .3 pounds
Shipping Dimensions: Approximately 8.25 x 5.5 x .6 inches.