Product review (5 stars): Fit great, a little effort
For my purposes, this product was exactly as described and are working perfectly.  I read some other reviewers had trouble fitting them in their stove.  On the larger bowls, there are three notches cut for the burner supports to fit into.  But these are truly universal, and I found that I only had to fit two of the three supports into the notches for the burner to sit flat.  The third support comes up short of the notch and sits flat on the ledge, like the supports for the smaller burners do.  I had to play around with the larger burners a bit, and found that if I located the center support in the appropriate notch, then one of the other two would also fit.  It was a tight fit, and one of the three supports on my burners is slightly flexible, so I had to squeeze it a bit to fit.  But once in, they actually fits much better than the bowls I had in previously.  (I'm not sure if they were the original bowls or after-market, but probably the latter.)

I bought the chrome.  They look great and have spruced up my kitchen considerably.  I would recommend this product to anyone who needs their stove reflector bowls replaced.