Multi-angle adjustment: Our knife sharpener can adjust the angle to fit different kinds of tools. kitchen knife sharpener Built-in 14-24 degree adjustable angle, allowing you to adjust the correct blade angle, we designed a special sharpening groove. 4 in 1 knife sharpening Kitchen knife sharpener is divided into four levels. The first slot is used for scissors, slots 2, 3 and 4 are respectively used for coarse grinding, medium grinding and fine grinding. Our professional 4 in 1 knife sharpener can adjust the angle through the knob, allowing you to sharpen the knife more easily. Ease of use and use : Whether you are right-handed or left-handed, the professional knife sharpener ergonomic handle allows you to restore your kitchen knife in seconds. Simply place the blade in each groove and gently pull the knife several times to sharpen it quickly and efficiently. Safe non-slip baseOur Knife Sharpener adopts non-slip base design, which is not easy to slip while working and is comfortable to use. Knife Sharpener is made of high quality materials, which is durable and can meet your long term use needs. Suitable for most types of knives : Professional Knife Sharpener is suitable for sharpening ham knives, steel knives, tactical knives, scissors, kitchen scissors, etc. Give everyone a very sharp, practical and fast kitchen knife. Not suitable for serrated knives. It occupies a small area and is very convenient for picnics.