Product review (4 stars): They are going to extend the life of  our stove.
We ordered 3 of these, 2 6" & 1 8"; I only gave 4 stars because we had to slightly modify the burner trays.  When I went to Sears they told me they're all different and we'd have to special order.  Not the case at all...if you have a basic 2 prong plug-in these should work just fine.  They were also half the price of anywhere else we looked.