Precautions The knife sharpener is not suitable for sharpening serrated knives or ceramic knives, but for fruit knives, kitchen knives, meat grinders, scissors, etc. Do not use excessive force or pull back and forth when using. But if you are not satisfied, please contact us, we will provide you with satisfactory after-sales service. Multi-functional grinding tool:: The knife sharpener adopts a strong and powerful motor, which is very suitable for restoring scissors, screwdrivers and smooth or serrated blades. Suitable for daily maintenance and sharpening of all kitchen utensils. 4 in 1 knife sharpener: : Our electric knife sharpener has four cutouts, namely: coarse grinding slot, fine grinding slot, scissor slot and slotted screwdriver slot, helping you restore your tools to like-new condition. The compact design allows you to easily store the electric knife sharpener without taking up too much space in your kitchen. Easy to use: : a button to turn on the power switch of the electric knife sharpener, with a storage base to keep the desktop hygienic. Put the dull blade on the electric sharpener, click the red button to move slowly (walking is not recommended), the dull blade will straighten after a few seconds. Non-slip and waterproof base: : The non-slip rubber base of the professional knife sharpener has strong friction and strong grip, ensuring maximum stability and safety. An easy electric pencil sharpener perfect for women. The knife sharpener can be used on any kitchen surface, including wood, stone, or glass countertops. Easy to clean: : [The structure and main body of the kitchen knife sharpener can be cleaned with a damp cloth. After use, clean and dry the sharpener with a damp cloth or soft brush. Avoid direct contact with liquids or cleaning agents that could damage it.