This is a custom model to organize tile grids for the game Cascadia.  The tile grids themselves are Christian Steinkruger's design found here.

In the photo, I've got 16 tile grids loaded (before I ran out of filament!), but i think you could get 23 to fit.  You can see that I modeled the height, so that it JUST fits in the box with the instructions underneath. I think there are different versions of this game, so the size of box may be a bit different depending on which version you have.

Two colors for the organizer were used only because I ran out of white filament.

If you're interested, I also designed the blue tile organizer in the photos found here.