Another fan of the B5 Kokuyo but I just hate their binders! I have not tried it but Amazon has one for $10 that holds a lot more paper: (https://www.amazon.com/26-Hole-Binder-Folder-Filler-B5-Gray/dp/B07XR769X5/ref=sr_1_6?crid=1OD6N0NCL1SZ&keywords=b5%2Bbinder&qid=1671829756&sprefix=b5%2Bbinder%2Caps%2C138&sr=8-6&th=1)