Steel rim stacking-clips

I needed to be able to stack my steel rims while I transport them in my car, without them scratching each other or the car.

So I made theese clips, that ensures some distance between the rims, and keeps them in place.

3 clips should be enough to ensure stability.

I also made a double version, to keep two rims close to each other side by side.
I did this because I need to transport 4 or them, stacked two side by side in two layers.
While not strictly nessesary, I printed an extra doubl