Top positive review
Great for leakproof durable, however you can't interchange the tops.
Reviewed in Canada on June 1, 2021
I really like these, they are really toddler proof at least so far. I have a 1.5yr old and 2.5yr old boys and they throw everything and smash everything and they so far haven't yet broken these. Also, when they throw them or try to dump out the water on purpose, they don't leak !! Haha ! The ONLY thing is it says ALL the rubber tops are interchangeable, I went out and purchased a more "nipple" type top for my youngest and it didn't fit properly at all so that's not true ! Just a heads up !