It's a device used to wind up rope. You tie one end in the little hole, and you can twist it all the way around the metal grooves, so that your rope is would up all nice and neat.
What's so great about this? I play paintball, and there are always true large vehicle, paintball-firing tanks at the scenario games. It's been done, now it's a big deal because it's miniature? Dumb.
That's so intricate, I hope it's bs, but if it's not, hahahahaha.
I don't think so.