Specifications: Seal grinding knife, kitchen knife, fruit knife for cutting: 1000 mesh - 3000 mesh. This coarse grinding and fine grinding: 240 mesh -800 mesh. Metal products: rough grinding with 600 eyes, fine grinding with more than 800 eyes. Glass: 400 mesh to not cut, 800 mesh -3000 mesh smooth. In addition to skin with 260 mesh stone recommended. Type: Whetstone Material: Emery Grit Size: 800, 80, 320, 400, 600, 240, 2000, 1500, 1200, 1000，3000 Use for: Grinding Stone, Jade, Seal Carving Knife, Wood Crafts, Metal Grinder Workpiece, etc. Size: 17cm x 7.5cm/6.69" x 2.95" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Whetstone