3-Stage Knife Sharpener: The knife sharpener will take care of your knives in every way. Tungsten carbide steel for coarse grinding, diamond rods for shaping and sharpening, and a ceramic stone for refining and polishing the blade. High-Quality Material: The chef's kitchen knife sharpener is made of solid ABS plastic, extremely strong, durable, and designed to last a lifetime. It can be used in the home or commercial kitchen. Unique Design: The handle is ergonomically designed for maximum grip and is suitable for both left and right-handed users. The non-slip rubber base ensures stability and safety, preventing the sharpener from slipping Easy to Use: Simply place the dull blade in each of the slots and gently pull the knife in one direction a few times, anyone can sharpen their knives in seconds Service Policy: Every sale includes a lifetime, worry-free guarantee to prove the importance we place on quality. If you have any questions, please feel free to contact us. Package Included: 1 Manual Knife Sharpener Specifications: Color: Black Material: ABS Plastic Size: 200 45 8mm Weight: 136g Suitable for All Surfaces: You can use it on both smooth and rough surfaces, including wood, stone, or glass countertops in the kitchen. How It Works: 1) First Step - Tungsten carbide steel is the starting point for grinding normal knives that have fallen out of shape. 2) Second Step - Use heavy diamond rods with high hardness to make the knives sharp again sharp. 3) Final Step - Sharpen knives with a ceramic stone to remove burrs and polish the blade. Kind Note: a) Not suitable for ceramic knives, serrated knives, and scissors. b) Do not pull the knife back and forth. Only one direction. c) Wipe them with a soft cloth and warm soapy water. Clean the sharpener after each use. d) Keep the product away from children.becomeveryrich