Hand Warmer, re-usable

This hand warmer provides a warming 40° C for up to 12 hours. It is non-toxic, re-usable and make use of a clean oxidation process. To use, simply remove the warmer and shake it a little. Once finished, simply return them to the air-tight bag. This halts the oxidation process, letting you re-use the warmer at a later date. Contents: 2 per pack.