This is a remixed part from Thingiverse, I looked for the original creator on here but I couldn't find him. The link to his original part where he shares the original step file is below.
https://www.thingiverse.com/thing:4410561
His original model was great but the hook opening wasn't large enough to hold my Ipad mini gen 6 with its case on, so I widened it from .2in to .6in.
Happy flying!
Griffin
The author remixed this model.