Hand Warmers 20 pairs of Heat Factory HOW TO USE HAND WARMERS: Simply open the outer package and expose the packet to air. No shaking is necessary. For best results, use Hand Warmers in an enclosed area with air such as a pocket or glove.

The Heat Factory warmer is a soft light-weight pouch containing a mixture of iron, charcoal, salt, sawdust, and vermiculate. When exposed to the air , an oxidation process takes place that generates heat for 10 hours.

Avg. temp. 135°F (57°C), max. temp. 156°F (69°C) when used as directed. Each package contains 2 Warmers. All HEAT FACTORY Warmers are designed for one-time, disposable usage.

20 pairs