Original Auermetall Ferro Rod Blank, 3/8" x 3" Ferrocerium Rod Blanks can be used as they are, or you can add your own handle or lanyard. Easily throw a shower of sparks with any carbon steel striking edge, such as a hacksaw blade, the spine of a knife, or a purpose-made striker. This highly pyrophoric firestarter's magnesium content ensures super-hot sparks to start your fire. Made in Austria by Treibacher Industrie for 5col Survival Supply These ferro rod fire starters are lacquer-coated to prevent oxidation.