The Grabber® Warmers contain natural ingredients that when exposed to air react together to produce heat. This is accomplished through a rapid oxidation process. Ingredients include iron powder, water, salt, activated charcoal, and vermiculite. Grabber® Warmers has perfected the process so that our warmers, depending on the individual product, produce heat anywhere from 37°C to 82°C for a duration of 1 to 20+ hours.
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