4 In 1 Kitchen Knife Sharpener Diamond

HOW DOES THE “4 IN 1” WORK? 1. Diamond Scissor Sharpener - Used to sharpen scissors. 2. Carbide Sharpener (Coarse) - Used to return a sharp edge to dull or damaged knives. 3. Diamond Sharpener (Medium) - For daily sharpening and ceramic knives 4. Ceramic Sharpener (Fine) - For refining sharpened edges and polishing.