Two-in-one sharpening system: the sharpener has two sharpening grooves, one in tungsten steel, which is harder and suitable for dull knives, and another in cream color, which can be used for sharpening. sharpening and polishing. The kitchen is suitable for most steel knives, such as chef's knife, santoku knife, smart knife, etc. Comfortable Design: Improved design provides non-slip grip and increases safety. Use it on any flat surface to add an extra edge to your dull knife. Convenient to use at home or outdoors. Easy to use: Put the knife in the sharpening slot, then sharpen it one way, repeat 3-5 times, the blade is like new in 3 seconds, very suitable for daily use.EXCELLENT QUALITY: This sharpener uses durable ABS plastic and high quality diamond and ceramic grinding wheels, designed for long life. Each item is tested before shipment. We always provide quality products to every customer who sincerely supports us. Customer Service: High quality materials, 12-month warranty and 30-day unlimited returns or exchanges. Friendly customer service and prompt support for every customer. The customer service team is always ready to help you. Quantity delivered: one piece