Update 2 (27.05.2025) :
Added container sizes:

45x120mm
90x120mm
90x150mm
90x170mm

Update 1 (02.05.2025) : Added a print profile with a big container 90x200mm (does not fit in A1 Mini) 

This is a space-saving modular organizer system for your office desk.
My wife asked me for such a solution, but I couldn't find something similar, so I had to design my own.
 

The rail could be mounted under the desk with a double-sided tape or secured with screws (there are dedicated holes for this). There are two lengths of rails, you can place them together side by side to make one rail with the desired distance as shown in the picture below:

You can combine as many containers as you want, all of them have different widths and heights. Dimensions are on plate names (width x height).

You can also check my Office Desk Accessories collection.

Thank you!