The Gatco Micro-X Double Duty features a compact design with a dual sharpening system that offers medium carbide sharpening rods and fine ceramic rods. It easily sharpens plain and serrated blades with preset sharpening angles. Simply pull the knife through the medium grade rods to reshape the bevel of a dull blade, then pull through the fine grade rods to finish the blade with a fine polished edge. Item includes a rubber grip and a keychain/lanyard hole for convenient use and carry.