In survival situations, you'll want this simple, compact magnesium fire starter with you at all times to get a fire going even in damp weather. The magnesium fire starter is a small block of magnesium that is waterproof and fireproof in its solid form. Scrape some shavings and then strike the firesteel built into the starter to ignite the shavings. The fire generated is extremely hot and will ignite even damp kindling.