Menstrual cup - rigid and ajusted box !

It was a request from my wife,
She wanted to be able to have her menstrual cup in her handbag "safely".

I design an ajusted box for the cup using the cup model from here :
https://www.thingiverse.com/thing:2958111

Using that model i design under solidworks the attached box.
My first print (in photo) was very ok except a small mistake on the "screw" part.
It is fix in the uploaded file.

It does fit a 30cc cup as the one in the link.