This is a 3D Ultrapro 3x4" Toploader card holder and display unit. It can hold up to 48 Toploaders (4 on the outside display and 44 inside).
The 4 outer Cards can be replaced whenever you want and are a great way to store cards while displaying.
There is potential for stacking options,
Also Look at the PSA Slab Model
Feel Free to buy me a coffee
https://www.buymeacoffee.com/SlabCubes
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