These lids are the best! I first learned about them when I acquired one with a used 60 qt. stock pot that I purchased for canning. It was wonderful because I never burned my hands and didn't have to use pot holders. I specifically got on the internet to find out if I could purchase more of them. I was elated when I found that Wasserstrom carried every size imaginable. They work great on fry pans as well as stock pots and are interchangeable between them. Thank you!!!