Foldback Paper Clips

Width is capacity. A 19mm clip holds a few sheets neatly, 32mm handles a report, and 51mm upward is for thick document sets and signage on a board. Oversizing crushes and marks the top sheet, undersizing lets the set slide, so match the clip to the stack rather than buying one size for the office. The arms fold flat for filing and lift off for reuse, which is the advantage over stapling. See paper clips for lighter jobs.