Lantana Chef Knife Sharpener, Soft Grip 3-Stage Professional Knife Sharpening System (for Ceramic and Steel Knives of All Sizes), Black FOR SHARPENING METAL AND CERAMIC KNIVES: 3-stage sharpening system. Diamond rod slot for ceramic knives / Tungsten steel blade slot for coarse sharpening / Ceramic rod for fine honing to eliminate burrs on the knife and polish it SAFE: handle location keeps hands away from sharpening area ERGONOMIC SOFT TOUCH HANDLE: Confortable and durable (ABS plastic handle with rubber finish) MODERN DESIGN: looks great on your countertop NON-SLIP RUBBER BASE: prevents sharpener from moving during operation