These are okay - a good alternative and easier to use than parchment paper, but it would be nice if the rubberbands were silicone so they could be used in the oven to hold the flaps down (after much research - they're only included for folding/storing the liners). The flaps kept flopping into my dough, making a mess. Also, they are not completely leak-proof. One of the breads that I made had some cararamel in it and it leaked between the two flaps down into the pan - no big deal - but they are not leak-proof. They are very easy to clean. I'd recommend as a cheap alternative to parchment, it'll do the job.