Heat Hands Reusable Hand Warmers are your high-tech side kick for your all your cold weather adventures. Heat hands are activated by bending a small metal clip inside the heat pack. This clip starts an exothermic chemical reaction which releases an enormous amount of heat. The heat pack can then be reused simply by boiling in hot water until all the crystals dissolve. Unlike its non-reusable brothers and sisters this pack is sustainable and great on the environment.
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