Those little Crewmembers are 2.5" high and Hook backed - means its more durable then regular hooks others. Limited to 100 each.
On the back there is a hook velcro surface, which is sewn with the patch. Thus the patch can be fastened on each loop surface completely simply. Loop Counterpiece attached. The compact size allows a quick and individual attachment to patch surfaces such as basecaps, backpacks, jackets, vests, helmets, etc..