
I bought these bottles because it was recommended by a friend. I was able to use one of these bottles while I was pumping using my Spectra. The wide mouth is easy to clean and it twists right onto the flanges without an issue. I don't plan on using these bottles for feeding so not quite sure about the nipples. Overall it worked really well and I won't have to change bottles when I pump more than the 5 oz. that spectra bottles hold.

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