Ohuhu Electric Pencil Sharpener with 6-Pencil Hole Selector Dial (6,7,8,9,10,11mm) 100% SAFE & KID-FRIENDLY: Equipped with a safety switch to ensure that the sharpener cant be operated unless the shaving tray is fully in place NEVER OVER-SHARPENING: Carbon steel helical cutter, sharp, strong and durable; Automatic stops once the pencil tip has been shaved within 0.3-0.5mm/0.01"-0.02" MULTIPLE-DIAMETER DIALS: Allows you to sharpen a variety of pencils (6,7,8,9,10,11mm) STRONG, SMOOTH & DURABLE: Heavy duty motor with power-grip suction cup design to firmly place on desks, engineered with the teacher in mind LARGE PENCIL SHAVINGS BIN: Reduce the amount of time needed to empty out pencil shavings