Keep papers secure and in order, even when folders are handled by lots of people and transported out of the office. Shelf-Master folders feature a double-thick tab for extra strength and long-lasting durability. TUFF file folders feature a polypropylene laminate reinforcement strip along the bottom edge. Subdivide documents with ease. Two 2" prong “B style fasteners per folder in positions no. 1 and no. 3. Includes 50 letter size folders (12-1/4" W x 9-1/2" H). Each folder has a reinforced straight-cut tab.