Premium quality presentation binders with a unique patented 180° mechanism which opens at 180° to file from both sides and add sections in the middle of a file A quality product you can rely on - prongs always align due to the patented design Save time - you can file larger amounts of paper in one go because mechanism opens wider than standard Lever Arch Files Holds up to 600 pages - 100 pages more than most standard files High finish embossed environmental friendly PP (Polypropylene) foil uniquely glued on both sides and welded at the edges enables a perfect appearance without air bubbles and waves in foil. A4 Maxi Size works perfectly with maxi indices & dividers preventing index tabs to be hidden by pockets Number of Pockets: 2 outside / 1 inside 50mm spine - 350 sheets capacity White