Soufull Professional Knife Sharpener Kitchen Tools, 2 Pack-Knife Sharpener, 2 Pack-Knife Sharpener High-quality material  the grinder head is composed of ceramics, tungsten steel, diamond and the handle is made of stainless steel. This knives sharpener adopt the streamline ergonomic design, so its more convenience, safer and easier to use Compared with the heavy grindstone and sharpening rod. 3 step sharpening system The fine diamond rod to sharpen daily sharpening and to repair and straighten damaged metal blades before the 2nd slot sharpens to restore its V-shape. Finally, the ceramic rod: to finely sharpen, polish and eliminate burrs on the metal blades. Non-slip base& Easy to use  Soufull knife sharpener designed the non-slip base to keep your safety while other sharpener didnt. There are 2 stages for your Dull knifes, coarse is suitable for sharpening knife and fine is suitable for polishing your blades to razor-sharpness. Multi-purpose knife sharpenersuitable for chef knife, sushi knife, Santoku knife, throwing knives, steak knives, pocket knives, steel knives, outdoor knives, serrated knives, diamond knives, tungsten knives, tactical knives, kitchen shears, kitchen scissors and kitchen knife set. for Soufull kitchen productsplease contact customer service For the first time if you have questions or comments, we will reply you ASAP. If the return is caused by the product quality or the mistake from US, We are fully responsibility for all.