Designed to be printed with 0.4mm nozzle.
Walls are really thin which makes all imperfections really visible.
I recommend using this tool tune retractions:
http://retractioncalibration.com/
I personally used this model to tune retractions because, I was too sleepy to figure out what would I need to modify in gcode to work with bambulab printer.
The author marked this model as their own original creation.