The Master Electric Two-Hole Punch MATEP210 is a compact, electric device designed to quickly and quietly punch up to 12 sheets of 20 lb. paper. It creates 1/4" diameter holes in a standard 2-hole pattern with 2-3/4" centers. Features include an automatic on and off function for efficiency, a large capacity paper chip pan, an adjustable paper guide, a reverse motor de-jam mechanism, and nonskid feet for stability. This two-hole punch can be powered by plugging into an outlet or using six AA batteries (sold separately).