USAF Pat Survival kit Magnesium Fire Starter Flint, these time tested simple but very effective fire starters first appeared in USAF survival kits and attached to the pilots Camillus survival knives  provides up to 25,000 strikes with keychain.

Using the metal scraper attached, scrape the magnesium strip from the top to the bottom create shavings. Next create sparks buy striking the rod from the top to the bottom to light combustibles