I suggest printing in PETG for longevity (unless there's even better stuff by now!). Originally I used PLA due to availability and it warped over about a year of use.
I used 0.3mm layer height.
Important: Supports are required for the bar recess and the rest of the model, however you must use whatever feature of your slicer to ensure support is not printed inside the cable tie recesses. I use PrusaSlicer and essentially placed resized rectangles which tell it what areas to ignore the support settings.
The author remixed this model.
This is a modification of the BarButtons model by Joost. There are two mods:
For full instructions and setup details please refer to Joost's site.