The Perfect 4 in 1 Design: Unlike 3-in-one knife sharpener on the market, our knife sharpener has four slots to meet your different needs. The 4-stage new design divides into a scissor-specific sharpener slot and coarse-fine precision -Sharpener slot to meet your multiple needs. . Non-Slip Rubber Base+Ergonomic Handle: The bottom of the knife sharpener has non-slip rubber bases that prevent slipping during use, so you don& 39;t have to worry about it shaking anymore. At the same time, the ergonomic handle allows you to easily grip and use the knife sharpener. . High-quality materials: The handle is made of ABS plastic, which is heat-resistant, high-temperature and impact-resistant. The outer side of the sharpener slot is made of 430 stainless steel, and the inner side of each sharpener slot is made of tungsten steel, a diamond sharpening rod and a ceramic sharpening rod. The quality is outstanding. . Very convenient:which allows you to sharpen almost all steel knives and scissors (except very wavy blades like bread knives, serrated knives). Simply insert the blunt knife into the sharpening slot and pull back a few times until the knife is sharp is enough. Tips: To take advantage of this sharpener, it is recommended to sharpen the knife in one direction only. . Guarantee: Our knife sharpeners have been thoroughly tested to ensure high quality. If you have any problems with the product, you can contact us at any time and we can give you a refund. .