If you're someone who uses a knife regularly, you know that a sharp blade is much safer and more effective than a dull one. That's why designer Tom Stokes created this compact sharpener. It's designed to be easy to carry with you and keep your knife sharp. To use it, simply hold it firmly on a hard surface, place the back of the blade into the "V" of the carbide sharpener blades, and draw the knife through towards you. This handy tool also includes a flathead screwdriver, a small channel blade/cutter, and a bottle opener. The Stokes Keychain Sharpener even comes with a split-ring for easy attachment to your keychain.