Double Hole Design:Good for regular and special pencil. Featuring two separate holes for different pencil diameters: 6-8 mm and 9-12mm.
Safe to Use: A built in safety feature that stops the sharpener from working if the shaving tray is removed! The auto-stop safety function makes the sharpener an deal choice for classrooms.
Multiple power sources: Use it as a battery operated pencil sharpener (4 x AA Batteries not included) or an electronic pencil sharpener using AC plug-in (not included) via USB cable (included). It also can be used as a USB powered pencil sharpener.
EASY to Clean: Removable blades and concise design is convenient for you to take blades apart from sharpener and clean it up. Just wide it with a paper or rag, it would keep newly always.
Suit for Professionals and Hobbies: Can be used with colored and normal pencils. Perfect for office use, student desks, accounting offices, home schooling, teachers, construction contractors, industrial designers.