7 in 1 Diamond Sharpening Stone, Mesh Number: #80, #120, #240, #400, #600, #800, #1000, used for fine sharpening of knives and scissors, suitable for knife sharpener, the higher the mesh number, the finer the sharpening. Whetstone: Made of high-quality diamond material, it is strong and wear-resistant, ensuring excellent sharpness and the best sharpening effect. Suitable for knives, scissors, files, and razor blades. Diamond whetstone size: 15*2, suitable for most knife sharpeners on the market, coarse mesh 80-240 (for sharpening), medium mesh 400-600 (for daily knife maintenance), fine mesh 800-1000 (for fine sharpening, daily maintenance). The diamond whetstone does not need to be rinsed under running water and is suitable for outdoor and home use. Combine the diamond with a towel and a protractor for better knife sharpening. The package includes useful tools: 7 diamond whetstones, a towel, and a sharpening guide. This is a very practical set for DIY enthusiasts, knife sharpening enthusiasts, as well as chefs and gardeners.