Phone holder for GoPro mount

If you're tired of the usual phone mounts that require various parts to work and aren't very effective, here's my own design.
Only one piece, can be mounted on any place you can put a GoPro mount, which is basically everywhere, and fits almost any normal size modern smartphone.

Just push the two arms together at the top, let your phone in, release the two arms and that's it, your phone is secured in place!

Mount it on a bendy tripod and you got yourself an amazing setup to shoot steady vi