Grips? Booms? Scaffolding?

Hey all, I'm new here and strictly speaking a Videographer... My question is about a generic studio set-up though, so I'm still hoping there's someone out there who can help.

I'm filming some overhead stuff (food preparation) for a Dental Consultant (yes, I know right?) and have decided to go with an overhead mirror, as opposed to a crane-mounted camera, with lots of wires and monitors.

Pretty much like this:



If you look at the guy's set-up, he has what looks like a couple of booms, with some fancy grips (for holding the mirror)... I obviously need these, but I don't know what I'm looking for specifically. I can't seem to find the right keywords, so I can order them.

It's possible they're light booms, but I'm not sure they'd be strong enough to support a large mirror.

Any pointers will be gratefully received.

All the best

Charlie