The Heat Factory Mini Hand Warmer is a Heat Factory innovation that
revolutionized the U.S. Warmer Industry over 20 years ago. These light
weight pouches contain a mixture of ingredients that, when exposed to
air, create an oxidation process generating heat. The Mini Hand Warmers
are our most popular size warmers and last for up to 10 + hours. The
Heat Factory Mini Warmers can be used in gloves, pockets, Heat Factory
Headwear, and any place where soothing heat is desired.