ZWILLING V-Edge Professional Knife Sharpener, for both Western and Japanese Blades, BlackZWILLING V-Edge offers the exceptional sharpness of a professional whetstone with the ease of a pull-through sharpener. This cutting edge sharpener allows you to restore your knives back to their original factory sharpness! The innovative v-shape design quickly and evenly sharpens the full length of the blade, keeping its exact angle along the cutting edge. Youll never have to worry about damaging the blade with this easy-to-use sharpener. The attached ceramic rods offer both fine and coarse sharpening. Their four sides are all usable for long-lasting performance. Thanks to the two angle adapters, the V-Edge is suitable for both Japanese and German blades.