It's best fit for my BruMate tumbler/cup. the orig. gasket that came with the cup is very narrow and white/clear - no matter how much or hard that I cleaned it - I could not get those dark stains (for lack of a better word) removed from it.I attempted at one other gasket - but it was too large. This one is a lot more 'thicker' but it still does its job in ensuring nothing leaks out of this cup. I could close/lock it up, tip it over - and nothing leaks!Good investment!
Rating:
[5 of 5 Stars!]