4 Whetstones 400/600/1000/1200 Grit Diamond Whetstones Non-Slip Base Knife Whetstones/Honeycomb Surface Multiple Sizes - Our whetstones are available in four different grit sizes: 400, 600, 1000, and 1200. The 400#/600# side is for coarse sharpening, while the 1000#/1200# side is for fine sharpening, meeting your varying sharpening needs. This whetstone set is compact and lightweight, making it easy to carry and store without taking up too much space. Convenient Design - The diamond whetstone's unique honeycomb design ensures that dust generated during sharpening doesn't affect the results. The diamond whetstone has a non-slip sponge on the bottom to prevent slipping during use. High-Quality Material - These diamond whetstones are made from high-quality, durable diamonds. Due to the high hardness of the material, our whetstones experience minimal wear and tear during use, ensuring long-term use. This is a very useful tool for sharpening knives. Easy to Use - This professional whetstone is extremely easy to use, combining both coarse and fine sharpening. Start with a coarse sharpening. Simply place the knife on the whetstone surface, maintaining it at a 30° angle, and move back and forth a few times. A plastic knife holder is also provided for added convenience. Wide Range of Applications - Our professional knife sharpener measures 15.2*6.3 cm in size, making it perfect for knives and tools such as kitchen knives, planes, scissors, gardening tools, woodworking tools, skis, axes, etc. With this knife sharpening stone, you can make your blades very sharp.