30mm Standard USA Card Holder

This is a card holder for standard USA cards. The card holder is 30mm tall (28mm interior), which is ideal for approx. 30-50 sleeved cards.

For other sizes, see my:
[20mm Standard USA Card Holder](http://www.thingiverse.com/thing:970787)
[40mm Standard USA Card Holder](http://www.thingiverse.com/thing:970857)
[60mm Standard USA Card Holder](http://www.thingiverse.com/thing:970859)