Morning Folks

I don't really ever use tolerances, but I'm looking for a nice way to convey some design intent and thought they could help.

A simple example will explain what I'd like.

Say I have a Table Top.  I would like to specify a Minimum and Maximum value for the Height.  So the height can vary within these absolute limits.

I'm unsure which type of tolerancing scheme would be the most appropriate to use.

From playing around the closest I've got is like this, but I'm wondering if there's a better way.  It would also be nice to add some sensors maybe.

Thanks in advance

Rob