So yeah, description says it all. Print with something that do not like to break on layers (ABS is a poor choice, but if you be dumb like me, at least print it with randomised seam and more infill or layers, so far it works).
Use PETG or nylon or something similar.
layer height? sure - 0.2 but if you can - go bigger.
The 3 holes are just as an alternative if you want to screw it to a surface. It was left in the design.
It is consisted of 3 parts. it could probably be 2 parts or maybe 1, but it is an easy print at least.
The author marked this model as their own original creation.