It's a piece for a microphone stand that helps with the degree of tilt. I am not sure what name this piece has and for this reason it has the name it has. It seems to be a fairly universal part on different mic stands and allows you to repair a stand that has a broken one.
Hope you like it! Any advice, or recommendation is welcome! Happy Printing!
I would be very grateful if you print it and put it on social networks to tag me at @Frikarte3D