Specialized Printed Notes fastener folders are ideal for organizing and customizing projects. A pre-printed, pre-formatted "Contents" grid on the outside front cover helps you tailor a quick-reference system to make both document-filing and document-retrieval faster and easier. Note-ruling on the inside front cover offers plenty of space for extra details about the enclosed subject matter, project-component completion dates, important project-meeting notes and more. Secure-bonded, two-prong fastener on the inside back cover accommodates most standard two-hole, top-punched sheets. Medium-duty, 11 pt. paperboard construction with expansion-scored bottoms and reinforced 1/3-cut tabs for extra durability. Acid-free.