That’s what concerns me about the Tatler rings also. They are reusable but they said check them every time. But… What the heck am I looking for? How do I know if they are good or not?
corrosion, or bending around the edges, the easy thing to do, look at a new ring, and an older ring, if the only difference is the color (because of use and age) then it’s good to go with. Hope that helps