The Readyman wilderness survival card is a completely flat piece of metal that contains all kinds of different tools. They won’t take up any more space than a credit card does and should you ever find yourself in an emergency situation, this card becomes so much more. You can pop the tools out at anytime you need them. It has an arrowhead for hunting, double sided fishing hooks, snare locks for trapping wildlife, sewing needles, saw blades, an awl, and tweezers. Now you are prepared for just about anything. It was developed by people who actually served in the U.S. Special Forces, so you are in good hands with these tools.