This is a great folder and I intend to get several more. They hold 5 pages ( additional purchase) that fill up fast if you have larger stamps. I want to get one for my Christmas unmounted stamps, one for the Halloween ones, etc.... I also was able to fit in one of the Dylusions sets that comes on it's own 3/4 page size. It fits on two of the plastic binder ring things. I don't think you'd get more than 1 extra sheet in the binder.
I just ordered three of these and already have them filled up. They are a great asset to keeping my stamps in order. I may need to order others in the future but for now three is enough for all my stamps.
I especially like the idea of it closing so dust doesn't get to the stamps.
Thank you for making this product available.