The Dog Tag Survival Knife is a multi-functional tool perfect for the outdoor enthusiast. You can attach the Dog Tag Survival Knife to a handle by lashing the blade through the two holes. A simple shoelace and a stick transforms into a useful tool without carrying cumbersome equipment. Slide the blade out of the protective case & reverse so the notch lines up with the notch in the case. The friction caused by rubbing the steel blade with the ferrocerium rod creates sparks to start a fire.