LOVATIC Kitchen Stainless Knife Sharpener - 2 Stage Diamond Coated Wheel System Sharpening with Ceramic Rod - Ideal Kitchen Assist for Dull Steel, Chefs and Pocket Knives - Safe & Easy to Use Diamond-electroplated ensure efficient and sharp sharpening resul. Sharpening angle guide to teach basic correct angle for first-time user Sharpens your knives quickly, easily and accurately sharpening stone Material : Synthetic Diamond Package include: 1 set whetstone(3pcs) sharpening stone