I purchased these for storing my CTMH stamp sets. My sets fit perfectly. It's so much easier to see what I have at a glance. My binder sits nicely on my desk and I'm using my stamps more often now.
This entire system by TT is well thought out. I have purchased several items from different vendors depending on price but all have proven to be extraordinarily great at organizing what they promise to hold. I have yet to apply the shut your flap closures, haven't found time. ( I bought those from TT website.)