Built with the classroom, teachers and school in mind, Antimicrobial Electric Pencil Sharpener helps students sharpen their pencils - standard, colored, jumbo and triangular - to a fine point quickly, quietly and safely. The XHC cutter technology allows 70 percent faster sharpening and 10 times longer life with the helical cutter. With the combination of a QuietSharp super-duty motor and thermal overload protection, this electric pencil sharpener operates quietly to avoid disturbing your class while in session. Durable construction withstands heavy-duty classroom use. To ensure safety in the classroom, the tamperproof, MagnaSafe shutoff technology prevents operation when the high-capacity shavings tray is removed. Child-friendly, easy-turn, 6-size selector dial will accommodate the various pencil and colored pencil sizes used in schools. For easy use, the Tip Saver Technology prevents over sharpening, extending pencil life.