Product review (3 stars): 40 Pcs Aluminum Foil Square Gas Burner Disposible Bib Liners Covers
The liners are taped together in groups. Removing the tape is difficult, ended up using a blade to slice through which cut into the liners. The liners are VERY thin. They catch on fire easily.
On the pro side, they are cheap, they fit and the delivery was, as usual with Amazon, on time.