Product name: Pencil Sharpener Gear: 3-2-1 ( Tip - Flat - Blunt ). Available ID: 6-12mm. Item number: MS8028 Type: 8028 Shape: geometric type Model Number: School supplies electric pencil sharpener Type: Electronic Age: 3 years old Application: Pencils, charcoal, colored pens Charging method: USB Applicable 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 box 2. Press and hold body and rotate knife holder cover counterclockwise. 3. Take out knife holder and replace it with a new one 4. 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 below 5. 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:black Material:Plastic + Metal Package Contents: 1 * pencil sharpener 1 * usb charging cable Only 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.