mountain buggy bar clip

**What this is**
Replacement for a plastic clip attaching the removable safety bar to the main chassis.
The company is called [ 'mountain buggy'](https://eu.mountainbuggy.com/), I am not sure about the exact model, you can maybe compare yours to the image.
For reference:
The chassis bar has diameter of 25 mm
The screw has 5mm OD

** Printing**
I was a bit hesitant to use PLA, if the stroller sits in the sun in summer, so I went with PETG
To avoid the screw hole being blocked by the elephant foot effect I added small chamfers.