EASY OPERATION: The M by Staples Arc system desktop punch uses a patented One-Touch technology to create efficient force with minimal effort, so you can cut through up to eight sheets of paper at one time or up to 11 holes per sheet. FLEXIBLE SIZING: This desktop hole punch is compatible with letter-size and Arc junior paper, making it easy to customize your office notebooks. Simply slide the adjustable paper guides into position for quick size adjustments. Questions? Leave a comment below!