Holdit has made this card holder so you can safely and easily store 2 cards, in a safe place. It can be mounted directly on the back of your case.

The card holder is easily mounted by peeling the layer on the back so the card holder can be glued to the case. 

The card holders come in the same colors as Holdit's cases and can thus be matched with a Holdit case.

Dimensions: 95 x 65 mm
Pocket size: 55 x 60 mm