Perfectly sharpen pencil tips in just seconds. Movable dial accommodates six different pencil sizes, including triangular student pencils. Carbon steel blades and powerful AC motor work quickly and quietly, making it great office and school environments. Translucent, spill-resistant shavings receptacle eliminates mess and allows you to see when it needs emptying. Thermal cutoff feature prevents overheating, and unique lead-saver feature prevents oversharpening.