The directional movements indicated in the listing are precise: the arms allow you to move up, down, back, front, retract, stretch, twist and bend - just like human ones arms / elbows. The listing for this "Motion Monitor" included a video that showed moving parts as if they could be moved with little effort. That's irrelevant! Get ready to exercise: All joints are very stiff. To move the levers up and down, one of the Allen keys must be used to loosen and then tighten the screw again. If the monitors are already installed, two people must hold the mounts while this is done or the monitors will slide down the neck. The monitor arm will not slide up and down the neck unless the screw is actually loosened, and if not tightened enough to practically rip off the screw, the monitor arm arm will slide back down the neck. Be sure to balance this out or else everything will fall forward. Using words like "full motion" and "articulation" is somewhat misleading because the parts of this thing don't move and then stay in place by themselves; Screws must be loosened and tightened. Now that I've assembled it, it's solid and I love that two monitors can fit on my desk with just one stand - less clutter and less desk space. Once positioned, the monitors remain in the position where the hands are. I will keep it; If I want a replacement, I want to find something that's easier to assemble and has a smoother, lighter movement.
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