The Staplex® SU-100N Ultra Heavy Capacity Electric Stapler has the capability to staple up to 120 sheets (20# paper, or equivalent) with just the tap of an electronic foot-switch. You can re-load the stapler in seconds with five sizes available: 1/4", 3/8", 1/2", 5/8" and 11/16". The High-Low switch allows you to adjust the stapling impact so that you can deliver the correct stapling power, every time. The SU-100 N Electric Stapler is portable (it only weighs 22 lbs.) and requires no mounting. Simply set on your desk, table, or bench and start using. There is a direct-drive solenoid to ensure a tight, positive clinch, as well as a dual adjustable locking backstop (up to 4" deep) for neat and clean stapling. With the jam-proof 100% steel staple mechanism, you get heavy duty stapling that can go through paper, corrugated plastic, cardboard, cloth, and more.