Tried and true, the UST MagBar Fire Starter combines magnesium shavings and the sparks of a flint to start a fire when you need it. Use the serrated edge to shave off magnesium into a pile, then use the other edge to strike the flint bar and create sparks to reliably start hundreds of fires.FeaturesFire starter with magnesium on one side and flint on the otherReliably starts hundreds of fires; includes striker attached on key chainIdeal for camping, ultralight backpacking, hunting, emergency preparedness, and moreMeasures 3.1 x 1.1 x 0,4 (79 x 29 x 10mm); weighs 1.8 ounces (50 grams)