Quite simply, they are the best. Period, end of sentence.
I've been buying them since they started making them. They fit virtually any size pan. I tape the ends to form a straight edge in the box. Used to tie a knot but finally hit upon the taping idea. Now it is a tailor fit. Frankly, you're wasting your money if you buy anything else.
ProsThey will fit any size pan. Tie the corners or tape them down, pull the string to tighten it up.
ConsSafeway doesn't carry them anymore! Grrrr...