This product is a double-sided diamond sharpening stone, mainly made of diamond material, durable, strong and stable, can be durable for a long time, will be your good choice of polishing tools. It is reasonably designed, easy to carry and store, and can be used in your daily life. It has practical functions and simple usage, making it the best choice for housewives. Features- Color: Mainly black, silver . - Material: Diamond. - Size: 15.00X6.30X0.20 cm/5.89X2.48X0.08 inch. - Note:400/600/1000/1200 grit.- It is made of high-grade diamond material, which is strong and excellent, safe and durable. - It has a wide range of applications and is suitable for a variety of tools, such as kitchen knives, scissors, etc. - Excellent sharpening performance, long service life, better service for you, useful and reliable. - Double-sided design, professional and useful, convenient for your using, and bring you convenience, with non-slip base. - The meticulously crafted whetstone is efficient and durable, with excellent texture, which will bring you a better experience, unique honeycomb design. Packing list: 1 x 400 Grit Diamond Sharpening Stone1 x 600 Grit Diamond Sharpening Stone1 x 1000 Grit Diamond Sharpening Stone1 x 1200 Grit Diamond Sharpening Stone