The Double Diamond Manual Knife Sharpener has 100 percent diamond abrasives which help produce a double beveled edge. The Sharpener both sharpens and hones blades creating a sharper than ever blade. The precision guides allow for control of the sharpening angle. The Sharpener is able to produce flawless results, edges that are burr free and extremely sharp. The Sharpener is versatile, able to sharpen a wide range of knives from straight edge and serrated to pocket knives and sporting knives. The Sharpener has a textured handle making it easy to get a good grip while sharpening knives. Great for restaurants, delis and catered events. - Sold per each