Heat Factory Adhesive Toe Warmer Pack 40 Pack. The Heat Factory Toe Warmer Pack is made using a biodegradable mixture of iron powder charcoal salt sawdust and vermiculite. When exposed to the air a oxidation process takes place that generates heat. The Heat Factory Adhesive Toe Warmer Pack is sure to be a life saver when confronted with frigid temperatures. For a fantastic way to make sure you have the means to keep your toes hot purchase the Heat Factory Adhesive Toe Warmer Pack. Specifications for Heat Factory Adhesive Toe Warmer Pack: Manufacturer: Heat Factory Additional Features: Box of 40 Features of Heat Factory Adhesive Toe Warmer Pack: Box of 40 Case pack = 8 boxes Package Contents: Heat Factory Adhesive Toe Warmer Pack Heat Factory 1945-CS: Adhesive Toe Warmer Pack 40 Pack