This Magnesium Rod is a high-purity magnesium rod, not a flint. It is designed for outdoor use to aid in fire-starting and extend flame duration. It does not produce sparks on its own and should be used with a flint. How To Use a Magnesium Fire Starter Step 1：Shave a small amount of magnesium into dry grass, paper, wood, or leaves. Step 2：Ignite with sparks from a ferro rod, matches, or a lighter. Step:3：Allow the sparks to fall onto the magnesium pile to start a fire. CAUTION: Magnesium burns quickly, hot, and bright. Not for indoor use. Keep away from children. SPECIFICATIONS: Item: Magnesium rod High Purity: 99% Diameter: 0.63in / 16mm Length: 3.54in / 90mm