thanks @tibi2696

My aunt used them for my cousin and she barely spit up, also it was super easy to burb her.

ok great. thanks ladies @sirenita_x3 @shevy those were the ones I put on my baby registry.

I've heard there really good at keeping the baby from drinking extra air, and are great for colic babies! Those are the only kind of bottles Marissa got for her baby shower.

Yes they are amazing used for my little brother when he used to spit up a lot they help get the air out