SnowChip Kitchen Knife & Scissors Sharpening System, 4-in-1 Professional Knife Sharpener &ndash; Black 4-in-1 Knife & Scissors Sharpener: Stage 1 -- diamond rods for scissors sharpening; Stage 2 -- carbide blades for sharpen the bluntest knives; Stage 3  diamond rods for further sharpen knives; Stage 4 -- ceramic rods for honing and polishing the knives to be the sharpest. Useful: You can not only use it to sharpening, honing and polishing your knives but also sharpening your scissors. It is useful to help you save money for buying new knives and scissors Safe and esay to use: Holding handle of the knife sharpener, your can esay sharpen your knives on the safe way that your hand is safely away from the moving blade cess. Just 3 to 5 pulls through the sharpener is all it takes to restore any knife to a precision edge. Stable platform: Solid ABS plastic body and slip-resistant rubber feet mean your sharpener is easy to handle and stays put during use. Sharpens All Knife Sizes: The sharpener is suitable for machete, slicing knife, fruit knife even works on hunting and survival knives. Not suitable for serrated knives.