High-carbon steel flint striker: Strikers such as these have been proven over millennia to produce high-temperature sparks capable of igniting fire consistently over a lifetime of use. Because of their high level of dependability, these strikers are popular with outdoorsmen, survivalists, peppers, and those practicing self-sufficiency. Perfect size for portability: Measuring in at only 1.7" x 3.5", these strikers are ideal for backcountry wilderness survival as an emergency fire starter. Strap it to your bag for the added peace of mind knowing you’ll always have the ability to create sparks with flint, chert, quartz, jasper, agates, or other glassy rocks. How to use: It is important to familiarize yourself with firecraft techniques and practice in a safe environment long before you rely on it for survival. Carbon steel strikers create sparks by shedding molten micro particles after striking, or being struck by, sharp rocks that are harder than the striker itself. To ignite a fire, catch the sparks with charcloth and tinder while blowing it into a flame. Kuvik High-Carbon Steel Flint Striker for Emergency Fire Starting