Leitz Marble Box File A3 Broad, LandscapeProngs always aligned and tested over 12,000 times 180 mechanism makes it easier to add sections to the file, because you can file from both sides when open Mechanism opens 50% wider than standard Lever Arch Files, saving time and filing larger amounts of paper in one go Heavyweight 100% recycled board A3 Broad Landscape 80 mm spine width 600 sheet capacity LE 1073