Product review (2 stars): Not great but usable.
I believe the knobs are what were advertised, but since the diameter was not specified they are too small.  More importantly, the knobs are packaged with 2 sets of 4 temperature rings, 4 low to high and 4 high to low.  Unfortunately, there were only 3 of the design we needed.  The good news is that they fit the shafts on our 50 year old range so we are using them.