Get a custom fit - staples 2 to 180 sheets with one size staple. Stapler senses the size of the paper stack and cuts the staple to the proper length leaving a perfect flat clinch that eliminates paper stack-up. Heavy duty construction with AnitJam mechanism. Bi-material handle design adds comfort. Push button releases front loading magazine and locking paper stop helps place the staple exactly where desired. Comes with 800 heavy duty staples. Manufacturer's 7-year warranty. All sheet capacities are based on 20-lb bond. Use Bostitch SB38HD staples only.