This case advertises as holding 184 pens, but I use all available pen and blender slots so I can fit a total of 192, just like a book. I love this design. I have about 3 of these sizes and 2 smaller 72 travel cases. Can't comment on their durability as I've only had them a few months, I probably wouldn't recommend holding them in a sling. Strap only because it's not real leather and because the case can get heavy with over 190 pens. Always well packaged and beautiful when I receive it.
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