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Title: leaks
Review: I have had these bottles for 2 months. They were great for keeping air out, but the nipple is small. It's great for a new born not older than a month. After that, my baby seemed to be sucking with a little more trouble. Later the bottom of the bottles started leaking as soon as I put warm milk in them. It was frustrating. I had to throw them away. There was no use in having them anymore.
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