1.Dual grit design: The knife sharpener features a doublesided diamond design with a coarse 400 grit for quick edge adjustments and an extra fine 600 grit for honing and polishing. This exceptional combination allows for efficient grinding and ensures that your blades are not only sharpened quickly, but are also finished with a refined edge, making it suitable for different types of knives. 2.Fast sharpening speed: Equipped with a diamond surface, the sharpening stones for knives a sharpening speed that exceeds traditional sharpeners. The diamond material not only sharpens the blades faster, but also holds their edge for longer duration. Experience the difference in efficiency and effectiveness compared to traditional methods. 3.Construction: With fine craftsmanship and a robust structure, the sharpening stone promises longterm and stable performance. Its materials ensure that they withstand rigorous regular use, whether for your outdoor tools or gourmet kitchen knives and provides reliability you can trust. 4.Ergonomic nonslip handle: The design of the knife sharpener stone includes a nonslip handle that improves comfort and efficiency during use. This ergonomic feature ensures a secure grip that allows controlled sharpening movements regardless of whether you are in the kitchen or in the wild, making your sharpening process smooth and hassle.