Overview Material : diamond stone Brand : ceilyweli Color : 240+400+600+1000 Product Dimensions : 2"L x 1"W x 1"H Item Weight : 0.5 Pounds Grit Type : Coarse、Medium、Fine Number of Items : 4 Manufacturer : ceilyweli UPC : 658370672862 About this item 4 DIAMOND SHARPENING PLATE: 4 pieces grinding stones with anti slip base,made of durable diamond material. They respectively are #240 #400 #6000 #1000 UNIQUE DESIGN: unique honeycomb design ensures that the dust generated during the grinding process will not affect the sharpening. The diamond sharpening stone has a non-slip base to ensure that it will not slip DIAMOND MATERIAL: The diamond sharpening knife stone is made from diamond, which turns out to be tougher, stronger and more durable than those made out of stone material. Easy to Use: Choose the right angle,You just need to place the knife on the sharpening stone and move it back and forth several times. After sales guarantee: If you have any questions about the use of the product, please contact us and we will try our best to solve the problem for you as soon as possible