C Line-13 Pocket Vertical Expanding File: Black. Take up less room on your desk by organizing papers, manuals, magazines and more vertically. This package contains one 12-3/4x10-1/4 inch vertical file that expands up to 10 inches wide and can hold up to 750 sheets of paper, twenty-six magazines, catalogs, project folders, file folders and more. Archival quality. Imported.