Daeheung Laminated 3-Ring D-Ring Binder is an office file for systematically organizing A4 documents. With a generous 7cm width, it securely stores large volumes of documents, and the D-ring mechanism makes it convenient to turn or add pages. Its clean green exterior is great for document classification in offices or schools. As a durable domestic product, it is an essential office supply for environments that need to manage large volumes of documents efficiently.