The tiny zip pouch I had wasn't easy to get the SD card holders in and out of, so shopped cases. This TSV case can be used to store 80 SD size card holders (micro SD cards fit in the SD holders). The slots are easy in, easy out. Enough room for a few other flat items between the dividers. The case is hard, black, well made, dual zippers and a ring for a strap to be attached. Should last a very long time. The old days of tape cassettes and CDs, and to some extent floppy disks have been displaced by microSD cards, not entirely replaced, but the cases for storing those were huge compared to these.