XHC(TM) cutter technology for faster sharpening and longer life! QuietSharp(TM) super-duty motor for quiet, stall-free operation under normal use. Tip Saver Technology(TM) prevents over sharpening to help extend pencil life. One-hand, easy-turn, 6-size selector dial. Oversized base with suction-cup feet for added stability. Thermal overload protection for increased motor life. UL listed. Backed by the manufacturer's 7-year limited warranty. Stanley-Bostitch Pencil Sharpeners part of a large selection of office supplies. Stanley(R) Bostitch Classroom Electric Pencil Sharpener, Blue/Black is one of many Electric/Battery Operated Pencil Sharpeners available through Office Depot. Made by Stanley-Bostitch.