This is a gridfinity holder for the complete radius gauge set by @GerryPB.
0.5 to 7.0 mm and 7.5 to 13 mm
I found that his case was not quite large enough for the whole collection and didn't fit with my storage schema.
So I created a new one.
Now I can have all of my ducks in a row. (They look kinda like ducks to me.)
I have added a second one for a similar set off of Amazon that includes a place for the gauge handle.
The author remixed this model.
Added the holes for holding the gauges.