Product name: Pencil SharpenerGear: 3-2-1 ( Tip - Flat - Blunt ).Available ID: 6-12mm.Item number: MS8028Type: 8028Shape: geometric typeModel Number: School supplies electric pencil sharpenerType: ElectronicAge: 3 years oldApplication: Pencils, charcoal, colored pensCharging method: USBApplicable battery type: 2000 mAh lithium battery(with battery)Just 3 steps,First, Push pencil in hole and hold pencil with small strength,Then, it stopped by itself when it's done,Finally, pull it out with your hands.1. After opening lid , take out waste box2. Press and hold body and rotate knife holder cover counterclockwise.3. Take out knife holder and replace it with a new one4. After installing knife holder, buckle knife holder cover down and turn it to left to tighten it. When attaching knife holder cover, please align bayonet with position of cutting below5. Put waste box into place, and then fasten cover,Lightly press pencil to start, do not press down hard, there may be more pen sharpening.6. Semi-automatic , More faster and easy.7. Low noise design: Below 70 points.8. Waste Bucket: Large space, easy to dump and clean.9. There are 4 pcs silicone non-slip gasket on base, can prevents abrasion, keep stable and quiet.Colour:blackMaterial:Plastic MetalPackage Contents:1 * pencil sharpener1 * usb charging cableOnly above package content, other products are not included.Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.