100 Pcs / 50 Sets Canning Lids and Rings for Regular Mouth Mason Jar Ball Kerr Jars, Split-type Thick Metal Food Grade Material 100% Fit & Airtight for Regular Mouth Jars (50Lids + 50Rings)

I bought these because they were advertised as "heavy-duty" and the main objection to lids made in China was that they were too thin, These lids weren't too thin, but out of more than a dozen lids, only ONE made a proper seal. I've been canning for decades; I tried changing the headspace slightly, nothing worked. I'm returning my order to Amazon as defective.

specs say pressure cooker rated and they are not put in pressure cooker for 15 minutes at 10 lbs. pressure and lids rippled around edge they did not seal not as thick as ball lids do not buy for use in pressure cooker waste of money

Could not get name brand supplies. However, I decided to take a chance on these and have the same ease of use and while it may have been more than I would normally give, the quality seems just as good and I was able to get them.

Used to can plum butter. Half the batch had buckled lids. Had to reprocess using KERR LIDS.

These lids buckle while in the canner. I only had a few seal once buckled but I still don't trust the seal. I would not recommend wasting your money.

The one thing a canning lid is supposed to do is to SEAL. These discount lids did not do that. I have been canning for many years, and have always used standard Ball, Mason, Kerr lids. No problem. These lids did not seal, which is a really dangerous deficit. I have returned them and will never go off-brand again.

Could not find canning lids anywhere locally. Had beans that I desperately needed to can. Found these lids on Amazon at a great price & shipped quickly. Lids fit perfectly

The lids are horrible the crinkle and bend while canning and do not seal defiantly not a good product ring work as they should