【3 in 1 Messerschärfer mit Kochmesser】-Elektrischer Messerschärfer für grobes und feines Schärfen, Polieren.Diamant für grobes und feines Schärfen,Es kann Ihre Messer schärfer und einfacher zu bedienen machen.Das Harzmaterial wird zum Polieren verwendet, es schützt Ihre Messer vor Schäden. 【Suitable For Most Knives】-The Diamond Knife Sharpener For Kitchen Home And In The Kitchen:The Knife Sharpener Works With Most Common Kitchen Knives, Kitchen Knives, Pocket Knives, Fruit Knives, Cleavers. 【Storage and maintenance】 - Please note when using: 4-8 seconds for metal knives, 6-10 seconds for ceramic knives. The polishing function is not available for ceramic knives. Function for collecting grinding residues: There is a grinding debris collection groove on the bottom, which can reduce the contamination of the table during use and can be opened for cleaning after a certain period of use. 【Packing list】-Electric knife sharpener angle 20 X1,Chef knife X1,Instruction manual ×1.We provide 24/7 service. If You Have Product Problems, Please Contact Us. We provide the most perfect service and problem solving.we provide 24/7 service. If you have any product problems, please contact us. We offer the best service. 【How to use】 - Switch on the switch to insert the knife into the sharpener, and then pull back the knife tip evenly from the root to sharpen the knife effectively. Recommended steps: Rough sharpening - Fine sharpening - Polishing - Rinsing. Note: Avoid using too much force or pulling back and forth and avoid operating the machine with wet hands.