Check the listing for details. 80-3000 Grit Thin Polishing Diamonds Plate Sharpening Stone Knife Tool. Condition: New. Listed at 5.96 USD. Product Description: Kind reminder: The thickness of the grinding disc is about 1-1.5, and coarse-grained diamonds sand particles are thicker than fine-grained ones due to their larger size. (For example, the thickness of the 1000 # grinding disc is about 1mm, and the 80 # grinding disc is about 1.5mm) Color: As shown in the figure Size:80#,150#,240#,320#,400#,600#,800#,1000#,1200#,1500#,2000#,2500#,3000# Size: 152mm x 63mm /75x170mm Features: Ideal for sharpening all kinds of kitchen knives, planers, scissors, carving knives, jade, seals,garden tools, woodworking tools Light weight, small size, practical. This whetstone is simple to handle and can be taken with you when you travel without taking up too much space. Notes: 1. After each use, the surfaces water stains must be wiped dry to avoid rust and affect use. 2. The roughness of each grinding disc varies, and the specific use depends on the polishing object. It is recommended to choose grinding discs with higher mesh size for sharp cutting tools to avoid damaging them.