Ultimate Edge Diamond Sharpener

This easy-to-use, premium-grade, state-of-the-art diamond sharpening steel is made of microcrystalline diamonds bonded with nickel to a lightweight oval steel shaft that both sharpens and realigns at the same time, quickly producing a high-grade cutting edge. Even sharpens serrated knives.No messy oil or water required. Fits most standard knife blocks. 600 grit diamond mesh. Rinse clean to prevent steel buildup. 10" x ½" oval. Made in the USA.