2-in-1 Knife Sharpening System: The knife sharpener has 2 sharpening slots. One is a harder tungsten suitable for dull knives; the other is a creamy white that can be used for sharpening and polishing knives. This kitchen knife sharpener is suitable for most steel knives, such as chef knives, santoku knives, smart knives, etc. Comfortable Design: The improved design provides you with a non-slip grip and improves safety. Simply use it on any flat surface to sharpen a dull knife. Suitable for home or outdoor use. Easy to Use: Place the knife in the sharpening slot, then sharpen in one direction and repeat 3 to 5 times, within three seconds, the blade will be as sharp as new. Perfect for everyday use. PREMIUM QUALITY: Made of premium durable plastic and high-quality diamond and ceramic grinding wheels, this knife sharpener will last a lifetime. Each item has been thoroughly tested before shipment. We always provide high-quality products with a sincere attitude to every customer who supports us. 10.3*5.2*4.4 cm.