Product review (4 stars): Attractive and a Good Value
This set is an excellent match with the dinner plate collection offered by Corelle.  It looks almost identical in fact.  The metal used in the covers is not too impressive but it is more than adequate for the job - which is mostly just to look pretty.  It is NOT designed for covering hot burners - you need to let the burners cool down to near room temperature first.  Overall, I found this set of four covers to be an excellent value for it's comparatively low price.