High quality: The grinding position is made of tungsten steel, emery, high-hardness ceramics and other materials, which can be used for more than 3 years. Multi-function: With the 4-stage knife sharpener, you can sharpen blunt knives easily and professionally. Three step sharpening process (coarse, medium, fine). Keeps your kitchen knives brilliantly sharp. (Note: Not suitable for serrated knives) Ergonomically design: Non-slip rubber base and ergonomic handle bring good cooking experience. It is perfect suitable for both right-handed and left-handed users. You can use it with both right hand and left hand. The bottom of the knife sharpener has non-slip rubber bases that prevent slipping during use. Easy to use: Small and practical, easy to use. Simply place the blade in the sharpening notch and gently pull the knife through a few times, after a few seconds restore your blunt knives (Adjust the angle, push down the knives with a certain strength, pull from its base to the tip, don't push back and forth). Package including: 1* Knife sharpener