To calculate the overall star rating and percentage breakdown by star, we do not use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Packaged did not come with any screws even though product description lists them. The actual units are fairly solid, sheet metal with holes punched out, bent into a C, and painted matte black. However, they do have machining marks and sharp edges + burls.
I measure and thought it would fit on my desk, and it didn't even though it was able to adjust. I was "too late" window by just two days to return it and stuck with it. Truly bummed with this product that it will be collecting dust.