【SUPER LONG POINT PENCIL SHARPENER】: Want a 25mm long point for your charcoal pencils? Look at our art electric pencil sharpener. Designed for artists and suitable for all 6-8.5mm sketching and drawing pencils, charcoal pencils, graphite pencils such as Prismacolor, Derwent, STAEDTLER, Conté à Paris. Rotate the knob to have 3 sharpening effects and the length of the pencil nib ranges from 8mm to 25mm. Please note that pencil points may be broken when very soft charcoal pencils are sharpened. | 【3 PENCIL NIB OPTIONS】The length and sharpness of the nib are adjustable. Rotate clockwise to have a long and blunt pencil nib. Rotate anticlockwise to have a short and sharp pencil nib. If you want a long and sharp pencil nib, rotate anticlockwise and then clockwise. | 【RECHARGEABLE PENCIL SHARPENER】: With built-in 2000 mAh Lithium Battery, this rechargeable pencil sharpener can be used for 300 times after 1 hour charging. To charge the sharpener, connect the USB cable to a laptop or simply plug into a power strip with the adapter included. This portable pencil sharpener is perfect for use at home, school, office and outdoors. (The adapter is not included in the package.) | 【AUTO STOP PENCIL SHARPENER】: This electric pencil sharpener will stop sharpening automatically when the pencil is sharpened well and broken leads will be ejected from the blade automatically. The top open lid and large capacity shavings box make it easier to clean the shavings and never mess up your desk or floor. | 【100% SATISFACTION GUARANTEE】: We provide 12 months warranty for defective products. If you encounter any problems while using, feel free to contact us at [email protected]. We will offer free replacements or issue a full refund to make you 100% satisfied.