Exotac Fire Starters - nanoSTRIKER Firestarter with Gunmetal Gray Textured Lightweight 6061 Aircraft Aluminum Body. Model: ET1005GUN. Measures 3 3/8" when collapsed. Ferrocerium and magnesium rod waterproof by design. 440C stainless striker. Ultra-portable - measures 3 3/8" when collapsed. Gunmetal gray textured lightweight 6061 aircraft aluminum body. Keyring and lanyard included.