Product review (5 stars): Perfect
I never had luck purchasing these things from local stores so I was taking a gamble making this purchase, I'm glad I did. They have not faded or discolored yet, easy to clean and they fit great. I have Tappan Custom with openings of 8 1/4 (21mm) and 6 3/8 (16.5mm) and they fit perfectly. The actual size of these pans are: Bigger pan 9 1/4 (24mm) outside total diameter & 8 1/8 (20.5mm) inner diameter - Smaller pan 7 1/2 (19mm) outside total diameter & 6 1/4 (16mm) inner diameter. They also have the slots for the burners to rest in. Hope this helps someone trying to find an exact fit.

Disclaimer: I DID NOT receive this item at a discounted rate, I paid the full going price at the time of purchase and my review was NOT influenced in anyway (feel I should make this disclaimer these days).