Model Number:Zerodis0zv25fpauk-09 Colour:Jade Material:Diamond Item Weight:20 g Specifications: About this item Use for: Grinding stone, jade, seal carving knife, wood crafts, metal grinder workpiece etc.christmas presents for 1 year old Thin grinding polishing diamond square knife tool sharpening stone whetstone 80 - 3000 grits. Sharping stone is made of durable diamond material.Diamond coated material is more efficient than normal whetstone.christmas presents for 1 year old Recommend: Seal grinding knife, kitchen knife, fruit knife for cutting: 1000 mesh ~ 3000 mesh. This coarse grinding and fine grinding: 240 mesh -800 mesh. Mini sharpener designed.Easy to take for camping and kitchen garden knives. Use for: Grinding stone, jade, seal carving knife, wood crafts, metal grinder workpiece etc.christmas presents for 1 year old Thin grinding polishing diamond square knife tool sharpening stone whetstone 80 - 3000 grits. Sharping stone is made of durable diamond material.Diamond coated material is more efficient than normal whetstone.christmas presents for 1 year old Recommend: Seal grinding knife, kitchen knife, fruit knife for cutting: 1000 mesh ~ 3000 mesh. This coarse grinding and fine grinding: 240 mesh -800 mesh. Mini sharpener designed.Easy to take for camping and kitchen garden knives.