Welcome to our shop Please note the following precautions before using our knife sharpener: 1. The knife sharpener is not suitable for sharpening serrated knives or ceramic knives. It is designed for fruit knives, kitchen knives, meat grinders, scissors, and other similar tools. 2. When using the sharpener, avoid using excessive force or pulling back and forth. This may damage the sharpener or the blade. 3. If you are not satisfied with the product, please contact us. We are committed to providing you with satisfactory after-sales service. : Our knife sharpener is a multi-functional grinding tool with a strong and powerful motor. It is perfect for restoring scissors, screwdrivers, and both smooth and serrated blades. This makes it suitable for daily maintenance and sharpening of all your kitchen utensils. The 4-in-1 design of our electric knife sharpener includes a coarse grinding slot, fine grinding slot, scissor slot, and slotted screwdriver slot. This allows you to restore your tools to like-new condition. The compact design also makes it easy to store without taking up too much space in your kitchen. Using the knife sharpener is easy. Simply place the dull blade on the sharpener, press the red button to activate the motor (we recommend avoiding excessive pressure or walking motion), and after a few seconds, your blade will be straightened and sharpened. For added safety, our professional knife sharpener has a non-slip and waterproof base with strong friction and grip. This ensures maximum stability and safety while using the sharpener. It can be used on any kitchen surface, including wood, stone, or glass countertops. Cleaning the knife sharpener is also easy. You can clean the structure and main body of the sharpener with a damp cloth. After use, make sure to clean and dry the sharpener with a damp cloth or soft brush. Avoid direct contact with liquids or cleaning agents that could damage the sharpener. Note: 1. Please allow small size error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. (Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after sales service) Thank you for meeting me.I hope this helps you. Wish you a happy life. Thank you for choosing our knife sharpener.