【Heavy-Duty Electric Pencil Sharpener】This electric pencil sharpener is a must for teachers or anyone who has a heavy use on pencil sharpeners. Please don't push the pencil too hard when sharpening, or it will make a "hum" noise and not sharpen pencils..【Electric Pencil Sharpener with 3 Settings】Our electric pencil sharpener can sharpen 250 pencils at a time without overheating. Due to its bigger and stronger helical blade and motor, it's faster, more durable and powerful than others. There're 3 sharpness options available: Blunt, Medium, Sharp. Perfect pencil sharpener for kids, teachers, students, engineers, children, artists!.【Fast Sharpen】 To sharpen your 6-8mm No. 2 pencils or colored pencils to a perfect and durable point with 3-5 seconds. This colored pencil sharpener will start sharpening automatically when you insert the pencil and apply a little pressure. Professional automatic pencil sharpener with heavy duty helical blade can sharpen over 10000 times..【Safety Pencil Sharpener】Two safety features: stop working when the shavings box is removed or not closed tightly and stop sharpening when it is overheating. 4 suction cups at the bottom make it more stable to sharpen..【Warranty Guarantee】 Any questions, feel free to contact us, we'll provider the warranty guarantee for you.