Support base for box of water-soluble tablets (such as vitamins/Effervescent)

About:

Support base for box of water-soluble tablets (such as Effervescent).
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.

On the photo you can see example weather station - it holds ESP32 with temperature/pressure/humidity and light brightness sensors :)

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

Assembly:

You do not have to squeeze it to attach it, so if it is too loose 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: 80x2mm
- center ring:
    height - 10mm
    inner diameter - 17mm
    outer diameter - 25mm

Photos:

PETG with 20% infill, no supports, 0.20 speed.