Gridfinity 1x1 for support base for box of water-soluble tablets (such as vitamins/Effervescent)

About:

Gridfinity 1x1 support base for box of water-soluble tablets (such as Effervescent).
Additionally those boxes are ideal as ESP32 cases with extra modules.
When placed upside-down they tend to wobble, so I created a support base that you can use to stabilize it.

Please give a like and post makes and provide comments for further improvements.

Assembly:

It sticks pretty well to the base - in my case those 4 magnets in the base + 4 magnets in the model are not enough to allow detaching the box from the base. So you will need to use two hands to detach it.

If it is too loose and you want to make it permanently attached to base then use hot glue to connect it, suggested is just to use glue on the rim only, so it would be able to run away to the inside/outside.

Dimensions:
- base: standard gridfinty 1x1
- center ring:
    height - 7mm
    inner diameter - 17mm
    outer diameter - 25mm

Photos :

Devil Design Transparent PETG with 10% infill, no supports, 0.20 layer height, 200% print speed on Prusa Mini+