The 11 Function Survival Tool is so small it can fit in your wallet. Having tools at your disposal can help you manage stressful situations. This small compact item has built into it a can opener, Knife Edge, Screwdriver, Ruler, Bottle Cap Opener, 4 Position Wrench, Butterfly Screw Wrench, Saw Blade, Direction Axillary Wrench and 2 Position Wrench. You can achieve a lot with the 11 Function Survival Tool.