It is suitable as a gift for knife collectors and is also a good choice for family kitchens. [3-IN-1] This knife sharpening kit features three-sided grit: the 400# diamond sharpener can be used to repair damaged edges or restore basic sharpness; the 1000# diamond sharpening stone is ideal for regular maintenance and honing, allowing blades to achieve fine cutting performance; the 2000# ceramic sharpening surface is suitable for fine polishing of blades. Equipped with a wide non-slip base to enhance usability and safety. [Widely Applicable] The professional diamond sharpener with three-sided grit is made from high-quality materials, suitable for knives and tools made of high-hardness steel, offering strong grinding capability and fast sharpening performance. [Easy to Use and Clean] Diamond knife sharpeners for kitchen knives require only water or honing oil and are easy to clean. Includes an angle guide with 14, 17, and 20 settings to help beginners maintain the correct sharpening angle. [Durable] The diamond construction ensures long-lasting durability, corrosion resistance, and high hardness. The diamond layer allows full and even contact between the blade and the whetstone, extending the product's service life. Specifications: 400/1000/2000 Material: Whetstone + tungsten steel + ceramic Color: Black Package Contents: 1 set x Diamond Sharpening Stone Note: Other items shown are not included. Note: Lighting reflections and differences in display screens may cause slight variations in color compared to the actual product. Measurement may vary by +/- 1-3 cm.