Material: Plastic, Stainless Steel, Tungsten Steel, Ceramic 2 in 1 Knife Sharpening System: The sharpener has 2 sharpening slots. One is harder tungsten for dull knives, the other is creamier and can be used for sharpening and polishing. This kitchen sharpener is suitable for most steel knives like chef's knife, santoku knife, smart knife, etc. Comfortable Design: The upgraded design gives you a non-slip grip and increases safety. Just use on any flat surface to bring your dull knife back to sharp. Convenient for home or outdoor use. Easy to Use: Put your knife in the sharpening slot, then sharpen in one direction and repeat 35 times, within three seconds the blade is sharp as new .Ideal for daily use. Excellent Quality: With durable ABS plastic and high quality diamond and ceramic wheel, this sharpener. Size: 9.7 x 5.6 x 4.3 cm. Scope of delivery: One piece Note: The data is manual measurement, please allow 1-3cm error, due to differences between light and screen, there will be a certain difference in color, the specific received in kind shall prevail.