Photo and description is misleading you don't get the arm you get the attachment from the arm to the shower head. Paid double for something I could have probably found somewhere else for a lot less but not worth the return hassle. I just ended up painting the arm that was already in the wall.

Leaks like crazy, and it leaks at swivel, its a poor design. Completely worthless and it made of mostly of plastic. dont buy

It will not be tighten enough so the individual shower head will always turn around. And after applied Teflon tape it still will leak waters significantly.