Precautions: The knife sharpener is not for sharpening serrated knives or ceramic knives, but for fruit knives, kitchen knives, cleavers, scissors, etc. Do not apply excessive force or pull back and forth during operation. Usually a European knife or American knife has an angle of 20 degrees. The wrong angle can damage your knife. The perfect 4 in 1 design: With 4-stage knife sharpener, you can easily and professionally sharpen dull knives . 2 levels of tungsten steel for scissors and coarse sharpening, diamond level for fine sharpening, ceramic stone level for precision sharpening. Easy and Safe Operation: The non-slip rubber mat on the bottom provides a firm stand to prevent slipping becomes. We even have a cut resistant glove for extra safety Simply place the blade in the slot and gently pull the knife in one direction several times for quick and effective sharpening. Stylish Ergonomic Design: The ergonomic handle allows for easy operation for both right and left-handed users. The non-slip grip bottom keeps the sharpener stable and comfortable to hold, The rustproof plate with anti-slip pad on the bottom provides a more stable bottom. What You Get: Salvage your old set of knives instead of spending a small fortune spend for a new set. Classic model and stainless steel handle decoration highlights fashionable home style. The new scissor sharpener slot uses tungsten steel alloy, sharpen all kinds of scissors. Coarse sharpening uses tungsten steel alloy to quickly shape the blade. Fine sharpening uses a diamond sharpening rod, suitable for daily blade sharpening and repairing. Level for fine sharpening. A ceramic stone is used in precision sharpening. Non-slip rubber pad provide replaceable head and stable working surface.