Hoffman Richter HR-1 Pocket Knife Sharpener PRECISION ENGINEERED FOR PRACTICALLY ANY KNIFE - Specifically designed to hone your knife to an exact 22.5 degrees, to give your blade a constantly perfect edge each time, in seconds flat, from your old pocket knife to a full sized machete, in just seconds TUNGSTEN CARBIDE RODS - Use these rods to literally shave the metal from your blade. Just a few strokes will almost instantly restore even the dullest blade CERAMIC FINISHING RODS - These super-tough ceramic rods will then polish almost any sharpened blade to a finished edge in just a few strokes ULTRA-LIGHT AND ULTRA-TOUGH - At just under one ounce, the tough ABS plastic housing will last a lifetime in your backpack, bug out bag, or workshop LIFETIME GUARANTEE - Rest easy because your knife sharpener is protected by Hoffman Richter's Ironclad Lifetime Warranty; The satisfaction and quality guarantee makes these pocket sharpeners great gifts for family or friends, too