You get a solid grip on it to easily start your fire. It is 5/8 inch diameter and 5 inches long. The ferro rod weighs 5.8 ounces. Strike this rod with a rough 90 degree edge piece of steel, your favorite striker or the back of your knife and watch hot sparks fly. Experiment with different strikers for best results.
Aim the sparks at your favorite tinder and it will catch fire. Fat wood, Cotton balls,dry grass,dryer lint or your favorite tinder, experiment with different tinder to practice your skills.