The "riveted" back is poorly finished, when mounting the fiddly rear hook the retaining tab bends upwards. The pen tray could not be fixed with the cheap and small screws, here we had to make do with its own thicker screws. Other security (because we do not trust really the bracket) we have the board yet screw hooks, additionally push the frame a little tighter to the wall. Now we are focused on whether the enamel surface at least brings the quality.