Features: BATTERY OPERATED PENCIL SHARPENER: Powered by 4 AA batteries (not included), the strong motor and lightweight design make it perfect for use at home, school, or at the office. The small size makes it easily portable. DOUBLE HOLE DESIGN: Electric pencil sharpener works great for regular and colored pencil. Featuring two separate holes for different pencil diameters: 6-8 mm and 9-12mm. AUTO STOP & SAFETY DEVICE: Portable electric pencil sharpener, auto work when insert the pencil, and auto stop at a perfect point. Another auto stop function is that the machine will stop automatically when the lid is open, protect children and kids away from hurt. PORTABLE & EASY TO CLEAN: Removable blades is convenient for you to take blades apart from sharpener and clean it up.