If you were just left out in the wild with the contents of your pocket, how long would you survive? Could you catch food? Unless you’re some sort of tracker, probably not. Increase your chances of surviving with the Credit Card Sized Survival Spear.

This isn’t a whole spear, it’s just the head, and you’re going to need some other survival skills like how to fashion wood into a staff. Still, the spear part is pretty neat. It’s formed from a credit card sized piece of metal that you punch out and bend into shape. It can then be attached to wood to make a weapon or tool.

For throwing at birds or fish if you have to catch your dinner. They make a neat addition to survival bags for those who are into that sort of thing. The blade is made of stainless steel and is less than 1mm thick. It slides right into your wallet but it’s probably best not to try and pass through security at the airport with this. They cost $19.95 each.