DANUC Easy Knife Sharpener, Soft Grip 3-Stage Professional Knife Sharpening System | Sharpens Both Steel & Ceramic Knives in 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 EASY and FAST: Just 3 to 4 pulls through the sharpener is all it takes to restore any knife to a precision edge. No more grinding and damaging your precious knives with handheld stones SAFE: The handle of this sharpener is at the side so your hand is safely away from the moving blade during sharpening SOLID and NON SLIP: Confortable and durable (Engineered with solid ABS plastic body and slip-resistant rubber feet) Sharpens ALL SIZE: From paring knives, chef's knife to hunting and survival knives, this sharpens ALL.