"The first electric pencil sharpener designed by teachers for school use. Quiet operation for less classroom disruption. Heavy-duty motor for high volume use. Auto-reset motor shut-off. Auto pencil-stop prevents oversharpening. Multi-size dial sharpens wood, composite and recycled pencils, regular or children's thick size. Extra-large, see-through shavings receptacle for easier, less frequent emptying. Safe-start will not operate when receptacle isn't closed."