Nice but hard to assemble

I have the same parts ordered together with the desk where even a manual for the original parts is present, therefore was already clear to me what is installed where and how, but it failed in practice ..... the fit is quite poor ... well the gray original parts that the desk side dishes were not really better. It was just in front of the pen tray can only be by force, and wide-open fingers, a green pen tray holder of these 3 you have to push through about 1/3, which is sauschwer, then the round protective corners ... well. So all in all, if you have the parts installed only once, then they look good. Hence 3 stars.