The Exotac fireROD Refill Kit is a replacement ferrocerium for your Exotac fireROD. This rod utilizes a proprietary alloy of rare earth metals called ferrocerium. Some of these metals include Iron, Cerium and Magnesium. When a ferrocerium rod is rapidly scraped, the friction created ignites the shavings producing molten globulars of burning metal. It is these long-burning molten globulars of metal that make a ferrocerium fire starter so effective at catching other materials afire.FeaturesWorks when wetGood for up to 10,000 fire starting strikesFits Exotac fireROD Fire Starter (product 1024263333)