Product review (4 stars): Great product, confusing sizes
These are excellent replacements for typical metal drip pans. They clean up very easily. However, be aware that there are three sets for the small (6 inch) burners, and only one set for the large (8 inch) burner.  So, depending on how your stove is, you may have to order an extra 8 inch set (A "set" is the drip pan plus ring). My stove has two large and two small burners.

Incidentally, I called Range Kleen directly to see if I could trade in the extra 6 inch set, and they sent me a new 8 inch set for free.  Great customer service from this company!