Phone adaper for tri pod

I made an adappter for a tripod that was made for cameras and it has an quick releas. So i thought to make it for a smartphone because today they have a great camera quality. (and i really do not want to buy a tri pod for my phone because they cost like 20€ and are bad as you can imagine). It is not perfekt but the best I can make.
Everything is hold on together by a rubber band.

Print the top at least 80% infill and try to minimise the support because I needed to fix everything with glue.