Subdivide existing conventional end or top tab folders by adding one or more dividers inside with the scored, self-adhesive edge. Hinged edge is slotted to fit around existing fasteners in folders (sold separately). Standard 2 3/4" slit punching. 11 pt. Manila stock. 1" capacity twin-prong fastener on each side. Classification Folder Type: Folder Divider; Size: Letter; Number of Sections: N/A; Cover Material(s): 11 pt. Manila.