If you are looking for boxes to store your SD cards you will have a hard time finding these cases, especially for the price. They are similar to the small plastic sleeves that some SD cards are sold in, except they are 6 individual sleeves glued together and then 2 sets stacked on top of each other. Looking at the pictures it becomes clearer. This arrangement allows you to store 12 SD cards together and carry them in your pocket if you wish. I like these sleeves because you don't plug SD cards into pre-cut slots to store them - you just slip each card into its own little compartment. There's really no chance of damaging the contacts on the cards. A very simple storage approach and it works.
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