The trouble is: Ruger doesn't mark, on the rings, which model of ring or what the heights are - you have to know what you have in hand, or have someone locally available who's familiar with the various combo's.
Unless your rings were in a sealed NIB blister pack, from Ruger. In that case - the package will be printed with the ringset model info.
Ya see, someone could have thrown a rear ring of one height-set and a front ring from a different height-set together, thinking it made a real set of rings, when in reality they're not a set - they're just two rings.