Why You’ll Love Them Safeguard your important documents with Demco Flip-Top Document Cases. Designed for durability and convenience, these cases offer secure storage and easy access to papers, files, and educational materials. Perfect for classrooms, libraries, and offices, they help you stay organized and protect your valuable documents from damage. 60 pt., blue/gray barrier board with a 3% calcium carbonate buffer Acid and lignin free; pH of 8.0–9.5 Reinforced metal corners for added strength Flip-top lid protects contents from dust and light 5″ W case features a pull string for easy retrieval from a shelf All cases hold letter- and legal-size folders