Bought these because I hate the lid on my porcelain mug, and was hoping these would fit. They fit that well enough that I can use it and - bonus- they fit the Dunkin Donuts mugs I have been using for almost 10 years. I'll call them a win. I wish they had a way to make these truly non-spill tho', that the only thing that would make these better.
Rating:
[4 of 5 Stars!]