This heavy-duty stapler can staple practically any size paper stack without the need of changing staples. The patented DUAX technology requires only one staple to fasten up to 170 sheets. The stapler cuts the staple to the size of your paper stack while securing the discarded clippings. With Flat Clinch technology, paper stacks are 30 percent flatter. Adjustable throat depth and contoured handle add to the convenience and your comfort. Stapler is front-loading with a rear push-to-open button. It includes a starter pack of DUAX staples.