Zip tie lock, reopen

It is a lock for a zip tie, so you can push it through a hole and lock it.

Just slide it to the side and reopen it.

The bigger ones are simple resizes, the biggest is an asymetric resize, which makes it slightly elliptical.

The smallest needs to printed with 0.12mm layer height. 

The teeth get worn, so better apply from the side as well.

The one with medium int he name have a more flexible nose, but break more easy.

I have used PETG here, maybe PLA is fine as well.