Hey guys, I don't know if you have any need/use for such things, but I find basing air assets can sometimes get a little tight, especially on the Eastern Front, and in the UK.
The markers are designed to be printed on cardstock, cut out, and stuck together to make a double-sided standup. (I use double-stick tape, myself).
The cards are very similar to your corps marker cards, designed to be printed on cardstock, and cut.
This is just the German Set. I will be making a Russian Set and a Western Allies set a little later.
Also, the designations (JG, KG, StG) are not designed to limit what kind of aircraft you have based where, but to offer some historical "flavor".