Step 1: Prepare some withered grass,leaves or paper.
Step 2: Slow Scrape some magnesium from the lighter rod to the grass, leaves or paper
Step 3: Quickly Scrape the lighter rod, then it will have some spark to fire the grass,leaves or paper
Diameter: 5/16inch/0.8cm Length: 3.15inch /8cm (double diameter than others)
Waterproof & Weatherproof, Light Fires In Any Conditions .Ferrocerium rod is made from Iron, Magnesium and mostly of an alloy of rare earth metals called mischmetal with an excellent pyrophoric percentage : 98%min.