Design: This sharpening kit has 3 side grits, 400#, 1000# is typically used to repair knives with chipped edges and sharpen dull knives; 3000# whetstone for finishing and polishing to make the edges . We source premium quality material for the manufacturing of our Whetstones , sharpener is made from professional grade white corundum Easy to operate: Our upgraded sharpening stone comes with water holes and edge gripping tools. If you have a new tool, scissors, or a very dull tool, use an edge sharpener to sharpen it a few times before choosing the right grit for grinding. You can add water or grinding oil to the grinding stone, and the effect be better. The important thing is that we have dedicated water holes, so you don't have to worry about standing water. Stress-free use! Suitable for honing household kitchen knives, wood chisels, jade, seals, tool steel, seal knives, ceramic knives, and glass brick chamfers. Whether it's a household prop or an outdoor tool, you can use our whetstone to sharpen it and easier to use. Material: Oil stone+ABS colour: As Shown Package Contents: 1 x Whetstone Knife Sharpener 3 Side Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.