PREMIUM DIAMOND MATERIAL - These sharpening are made of high diamond material and are durable enough to last for years. The high-strength body gives the stone better durability, making it thinner and lighter.Multitasking Knife Sharpener - This set contains 4 different types of grits to your sharpening needs, such as kitchen knives, carpenter tools, ceramic knives, chisels. All have a design layout for efficient sharpening.EASY TO USE - The sharpener has a non-slip base for easy control and use. It has a 5.9x2.5 inch face and a wider blade for shape tools. Do not put it in the dishwasher or immerse it in water.Sturdy and Drinkable - Due to the increased hardness, the sharpener can be made into a thin and light body. Compared to other stone sharpeners, these diamond sharpeners are very portable and easy to in your bag.Colour:silverMaterial:diamondSize: 150 x 63 x 3mmPackage Contents:4 x diamond sharpening platesOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.