This model is a base for gridfinity bins to attach those at a multiboard. 

It can hold 5 small gridfinity bins or several larger up to a single 5x1 bin. The design is pretty clean and I tried to keep the bins as near to the multiboard as possible.

Personally I added a multiboard wall behind a door and the space in deep was extremely limited. Multibins were impossible to use here for me, because they are 50mm deep. Gridfinity is in this case the better choice with his 42mm grid. So I can open the door without crashing into my wall full of Gridfinity bins.