Easy to use: After turning on the switch, place the tool at a certain angle on the slot to close contact with the outer wall. Pull from the outside to the inside at a uniform speed and repeat three times to restore the sharpness of the tool. This product is a two-stage electric knife sharpener, providing two grinding positions: fine and fcrude. Provide quick repair, polishing, and restoration for your cutting tools. Compared to manual sharpeners, it is more convenient and efficient. This knife sharpener is specially designed and developed for families, suitable for various straight blades, including slicing knives, bone cutting knives, fruit knives, bone cutting knives, and more. Allowing you to achieve professional sharpening effects . Multiple charging methods, this sharpener can be charged through sockets, power , or laptops, allowing you to use it not only , but also conveniently carry it for camping with an appropriate size.