I personally didn't use them but one of my friends used them with her baby who is now a year and they LOVE them, and also have never broken one. I knocked one off the counter when I was there once and it didn't even crack.
We used Dr Brown's glass ones without the sleeves. Worked fine. Tried the sleeves and I hated trying to get them off and on.
I personally didn't use them but one of my friends used them with her baby who is now a year and they LOVE them, and also have never broken one. I knocked one off the counter when I was there once and it didn't even crack.