Specification Brand : NICHNAOO BulletPoint : Sold on Amazon BulletPoint1 : Large size block 7.9x2.9x1.14in, quick and easy to use,hard and durable. BulletPoint2 : High-quality silicon carbide for maximum peel and rapid level the sharpening stones. BulletPoint3 : Double-sided flattening stone with 120&320 Grit,reshapes damaged sharpening stones. BulletPoint4 : Diamond-shaped grid grooves efficiently removes only waste material and saves time. BulletPoint5 : Flattening stone,coarse/fine grinding.Ideal for flattening whetstone oil and water stones. Color : Gray CompatibleMaterial : Stone CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 4955571840028 ExternallyAssignedProductIdentifier1 : 190731949065 ExternallyAssignedProductIdentifier2 : 0190731949065 IncludedComponents : No ItemDisplayDimensions_Height : 2.6 inches ItemDisplayDimensions_Length : 8.82 inches ItemDisplayDimensions_Width : 2.76 inches ItemDisplayWeight : 1.07 pounds ItemName : Double Sided Flattening Stone Coarse/Fine Sharpening Stones Flattener Grooves Lapping Stone Fixer to Re Level Whetstone Oil Stones Waterstones with Angle Guide ItemPackageDimensions_Height : 24.5 centimeters ItemPackageDimensions_Length : 4.9 centimeters ItemPackageDimensions_Width : 11.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : sharpening-stones Manufacturer : NWZJ Material : Stone ModelName : 4955571840028 ModelNumber : DF01001 NumberOfItems : 1 PackageLevel : unit PartNumber : DF01001 ProductDescription : Our flattening stone is hard and durable that you can use it for a long time.Coarse 120 grit(dark grey)side is used to flatten water stones(less than 900 grit),fine 320 grit(grey) side makes the surface fine on the water stones(more than 1000 girt).Easy to use,repair and level your water stones.