The opinion of Aventure Nordique
Yaktrax Hand Warmers are convenient, disposable, yet environmentally friendly warmers.
When these hand warmers are exposed to oxygen in the air, the iron filings in the warmer oxidize, creating a rusting process that produces heat. Once out, put the Hand Warmers in a pocket, gloves or jacket and enjoy an 8 hour warming effect to keep your hands and fingers warm.
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