Great for home or office. Tracker and Desktop Stapler in one makes stapling conveniently easy. Swing the desktop attachment backward for easy tacking. Staple viewer lets you know before you run out of staples. Easy drop-in loading. Staples up to 40 sheets. Uses 1/4-Inch, 5/16-Inch and 3/8-Inch Surebonder No. 3 or Arrow JT21 staples.