Product review (4 stars): What's Not To Like?
... Except that the price is higher than I used to pay for these things.  Nevertheless, now that husband is retired and wants to try his hand at cooking (but still wants me to clean the stove), these are very handy little items.  They fit, they catch the gunky overflow, and keep the burner pans reasonably clean.  When the bibs get really yucky, toss 'em away and use new ones.  Beats the heck out of getting angry with the hubby.