I bought a few of these because they have a built-in clear loose paper holder that claims to fit letter-sized documents (as shown on the product). It doesn't. I put in a packet of about 10 sheets and closing the "envelope" damages the sheets since it's not wide enough. I also didn't like that the binding isn't square -they don't sit evenly on a shelf - the rear cover sticks out more and looks messy. But the too-small doc storage envelope was the killer for me. Returned.