Westcott iPoint heavy-duty school and office pencils sharpener features Auto Stop technology to prevent over-sharpening. Designed for high-volume use in the office or school. Multi-hole dial accommodates all popular pencil sizes. Low noise rating. Super-fast sharpening using helical 12-blade technology. Large, EZ-view shavings reservoir. Safety cutoff if the shavings reservoir is removed. Plugs into standard 110-volt outlet. 10-year warranty.