20 articulated links in a circle. It started as something else and I ended up with this.

Not everything needs to make sense.

It's an interesting print and a large fidget of weirdness.
It's about 16cm in diameter when stretched out and fits on the A1 mini plate.

Prints in-place without supports.
0.2mm clearance between the links. You might have to crack them when you take them off the plate.