This design offers a handy paint container that can be mounted on the side of an Ikea Kallax to provide plenty of space to store all your paints. It can also be easily taken to your painting table to provide a nice holder for all your paints.
The most important part here is the "MainHolder", which can be expanded with PaintRacks, Trays, BrushHolders and, if you want a more staircase-like design, the double and triple containers.
To mount the parts on an Ikea Kallax, just unscrew the two side screws and place the MainHangers there and screw them back in. If you want, you can use the SafetyClip for more stability. If your Kallax has the screws on top, you can use the TopScrewConnector. If you want to mount everything on a wall, you can use the WallHanger instead.
I have also added some real life pictures to see how they will look and mount on the Kallax. You can "stack" them under each other if you use the double or triple holders.