Ulefone armor case With Quick-Lock- adapter and arm adapter

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5956689.

Hi, I made a 3d model of the Ulefone Armor 9 a time ago. I have used it to make a phone case with a multi purpose quick anchoring point. Feel free to ask. The plan is to print the case in PETG. The arm holder could be PETG, but i am interested if it would work with TPU.