The quality of this is actually quite impressive. Two different mounting options. Very flexible and adjustable. Arms can be set to desired tension at any joint with Allen key.
                    I have a very unusual use case. I have custom built wooden stand made out of a 4x4 with 2x4 legs that go under my bed, because I have to lay down most of the time due back problems. I needed a second monitor, and the solution I devised worked, but was not adjustable enough.
                    I found this and installed it, attaching it to a 2x4 (4-inch side) that I have on my custom built stand, and it exceeded every expectation
                    I Highly recommend this. You can't beat this for the price and quality. For normal use, this is a no-brainer.