PERFECT BODY: The entire pencil sharpener shell is made of ABS material, which has good impact resistance. The core tool holder is made of alloy steel, which has high strength and high toughness. The open lid design makes it convenient and quick to handle shavings, not easy to dirty hands. There are also non-slip soft pads on the bottom to ensure stability and prevent slipping during sharpening. FAST AND SMART: Insert your pencil into the sharpener and pull the pencil out when you feel the obvious idle time. On average, a new pencil can be sharpened in ten seconds, and a blunt pencil only needs three seconds. After sharpening, the machine stops immediately. If the temperature is too high, it can also shut down intelligently, which can slow down the aging of the machine and increase its service life. . DUAL POWER SUPPLY MODE: This pencil sharpener is equipped with a USB cable and can be used directly after connecting the USB interface. It can also be battery-operated, so you can use it anytime, anywhere. . NOTES: 1) Do not mix new and old batteries. Do not use batteries of different types. 2) It is strictly forbidden to put your fingers into the pencil holder or touch the blade with your hands to avoid cutting your fingers. For your safety, disassembling or modifying the electric sharpener is prohibited. 3) This product is only suitable for wooden pencils with a diameter of 6-8 mm.