Product review (2 stars): they did fit pretty well for the 6" burners
I've had these for a few months.  I have an old 1964 Frigidaire Dbl Oven/Range.  The pans didn't fit perfectly for the 8" burners ( a little too large), they did fit pretty well for the 6" burners.  I was cleaning them the other day, and they're not holding up well, bend easily.