1、Aerodynamic Ergonomic Design: The knife sharpener adopts aerodynamic ergonomic design, which is more convenient, safer and easier to use than the grinding stone.2、Easy to Use: Whether you are right handed or left handed, the ergonomic handle allows you to sharpen your knife in seconds. Simply place the blade in each groove and gently pull the blade for several times to quickly and effectively sharpen it.3、Anti Slip Bottom: The anti slip mat at the bottom provides a more stable base, while its ergonomic handle provides comfort and simple grip.4、Ceramic and Tungsten Steel: Our handheld knife sharpener is made of premium ceramic and tungsten steel material that is strong and durable.5、3 Segments: This knife sharpening tool has 3 segments for coarse grinding, fine grinding, fine grinding, and you can use it to meet your different needs.