Negative Positive
Title: slow flow
Review: I received these as a gift and they do keep the gas to a minimum except the nipples keep the milk from flowing at a reasonable rate-- it's either too slow(which takes 45 minutes for my baby to finish or he doesn't finish a bottle at all or they flow so fast that my baby chokes). He now knows when he's being fed with those nipples and cries unless I change the nipple. Luckily, regular nipples work on these bottles.
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