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.