Quick sharpening: This sharpener can produce professional fine tips in 3 to 10 seconds. It is suitable for pencils with a diameter of 6 to 12 mm, including the No. 1 pencil. 2. Crayons and graphite pencils. Very suitable for children, students, teachers, artists, etc. [3 pin point modes] There are 3 sharpening options available: blunt, medium and sharp. Just adjust the side slide switch to select the point type you like. Professional sharpener with better performance. Safety pencil sharpener: When the chip box is opened, this small but powerful pencil sharpener no longer works. It prevents children from sticking their fingers into the holes, making it an ideal choice for toddlers. A great gift for your loved one. Powerful motor: The pencil sharpener with built-in lithium battery can be used 300 times in 1 hour. Using a USB cable, it can be connected to a USB socket. Or just connect the power board to the adapter (not including the adapter). [Easy to clean] The semi-transparent cover of pencil shavings can easily observe the capacity of pencil shavings and clean them in time. Product Color name: black Automatic work: Insert a pencil into the hole of the sharpener and press it down gently. This will sharpen your pencil or crayons to perfection. Suitable for wood and colored pencils with a diameter of 6-12 mm. Battery powered: charge for 1 hour, sharpen 300 times 3 focus settings: blunt, medium, sharp Safety protection: Open the sharpener cover, no longer work, no need to worry about hurting your hands, very safe and reliable. Very suitable for homes, classrooms and offices. Specification: Material: ABS Color: black or white Pencil diameter: 6-12mm Power: USB Battery capacity: 2000 mAh. Item size: 9 x 9 x 17.5 cm. Content: 1 x knife sharpener, 1 x USB data cable, 1 x user manual (English language not guaranteed). Note: It is not allowed to output via a 5 V adapter. Due to the different display and lighting effects, the actual color may be slightly different from the color on the screen. Due to manual measurement, please allow an error of 3-5 cm.