The retaining mechanism consists of 4 "brackets" in which the Board is clicked. These are so billg and badly processed that when the screws are already one thing is broken.
The Prdoukt is not of MOB but francs and is called Xtra-Line.
[Edit]
A few days after my review Master of Boards answered phone with me and explained that it was a mistake, and I are buying a product is immediately sent again. For this attentive and friendly support I give later still full 5 stars ... thank you very much also here again!