 trim off shave off some uh some tinder essentially from a log or a branch and then um use that to help start a fire basically and then there's a striker in there it's a really handy little deal they've been selling these things like crazy in fact they've been out of stock a lot so if you see these things in stock get yourself uh one on order because they are pretty neat little uh little kits and they're 12 bucks and they're small but