This is a very basic DJI Osmo Action 5 Pro mount for FPV drones with GoPro-style legs. Can be used with that protective rubber ring on lenses but it's not really designed for it. So, you better take that rubber thingy off.
I printed it with Flexfill 98A TPU, with supports, 0.2 layer on Prusa3d MK3 printer.
The author marked this model as their own original creation.