Currently it's staying up because of the two monitors supporting it from falling down but the knock off versions that are like 8-

The C-clamp is also deeper than cheaper versions so it really holds well with minimal vibration

One of the things that's really nice about Blue Compass boom arm is that the C-clamp is much stronger than cheaper versions and fits better over thick desktops (I use a standing desk and the desktop is about 2 inches thick)

While a bit pricey, if you have one of the cheap spring showing versions you should strongly consider upgrading as this thing makes your desk feel like a radio booth

Out of the box the product looked promising felt great and appeared to be made out of quality materials however, upon installing my Hyper X Quadcast S which is not a very heavy