I bought this for my portfolio when I was job hunting, but I'm selling it now because I don't need it anymore. I have opened it, but the packaging is still available. One of the books has some signs of use. The size is A4, and it can be used vertically. If you have any questions or concerns, please comment! -------------------------------------------------- Perfect for submitting documents such as proposals, reports, and reports. The structure separates the cover and documents, allowing for 180-degree opening and smooth two-page spreads. It can hold up to approximately 50 sheets of documents. It has a neat format where the binding part is not visible.