We created an evolutionary derivative of the original Nano STRIKER with a larger rod and striker handle. It utilizes the same innovative design as the original, but with just enough extra size and heft to improve its ease of use without making it too big or bulky for key chain carry. The striker handle is 46% bigger, making it easier to grip. The XL version also sports a 33% larger ferrocerium rod, which improves the durability and lifespan of the rod even beyond that of the original Nano Striker"s. The Nano STRIKER is a high quality, ultra-small and completely self-contained fire starter. Sacrificing neither form nor function, its unique all-in-one design puts all the tools you need to start a fire into one tiny package. To top it off, the rods are replaceable and the striker is ultra-sharp tungsten carbide. Ferrocerium fire starters work best with tinder materials that contain large surface areas: dry grasses, wood shavings, cotton balls, dry leaves, clothing lint, etc. Using a tinder material of your choosing, create a loose tinder bundle to catch the sparks from the Ferro rod. Wrap the included lanyard around a few fingers to secure the striker handle. Holding the striking tool at an angle, use moderate pressure to quickly scrape the rod. The striker should be carving material off the ferrocerium rod.