These containers can hold ship and upgrade cards for the X-Wing Miniatures game. The ship card containers are 1/3 height, and 2x2 on the stanley grid.. The upgrade card containers are 1/2 height, and 2x2 on the stanley grid.
I print 3 of the ship card holders, one per faction in red for rebel, black for empire and gold for Scum. I print 2 of the upgrade holders in white.
Then a base on each one so they containers won't slide around. The base included is intended for use in the part of the case on either side of the handle, as it's only designed for containers this size.