Elecrow 5 Ball Mount

This is a ball mount for the Elecrow 5" touch display with this cover: https://www.printables.com/model/85017-elecrow-5inch-hdmi-display-b-case

The ball mount is compatible with this mounting system: 

https://www.thingiverse.com/thing:3500920

I've printed in Amazon Basics Black PETG.