This is a replacement clip for a Jura E55 Impressa watertank cover. The clips often break if you hit the cover with the watertank.
To replace the clip, you have to cut of the wider part of the broken clip (marked in red).
After that, the 3D printed part slides easily over. Simply use some glue to hold it in place.
Best is a print in PETG and 100% infill.
You can mod it to your needs. I attached a FreeCAD file of the clip.
The author hasn't provided the model origin yet.