The RAT Fire Kit is a last-ditch fire starter and mini survival kit container. The watertight capsule has plenty of storage space for tinder, fishhooks, line and other essential survival tools (user supplied). The Fire Kit can be clipped to a belt or vest, carried in your pack or put in the glove box of your vehicle. The compact size and light weight make this kit a very unique survival tool for hikers, adventurers, campers, hunters or anyone else who ventures into the wilds. The RAT Fire Kit uses a removable / replaceable Misch Metal flint. It does not produce a shower of sparks like standard Ferro rods. When struck with a sharp edge, the Misch Metal flint produces small balls of molten particles that burn hotter and have a longer burn time than the sparks made by a standard fire flint. This rod has been proven to light difficult tinder that regular flint wont, thus the reason for using this type of flint in a last-ditch survival kit. The Misch Metal flint requires a very sharp edge to strike. We suggest using the edge of your knife as a striker. This kit is a real survival tool, and in a true survival situation it wont matter if you dull a small part of your knifes edge in exchange for building a life-sustaining fire.