I wanted a shelf to display some collectibles above my two stacked computer monitors, but didn't want to move my tapestry. This shelf was designed specifically to sit on top of the “Vivo Dual LCD vertical mount” however I'm sure this will fit other brands since its such a basic design.

Fair warning, I centered things terribly so the walls will only line up with the tabs one way. Just keep spinning it, eventually the tabs will line up and let you slide the two pieces together