The * on these are perfect for teething babies. They really do not leak so i don’t have to worry. They are easy to wash and she can actually hold them with one hand.

The colors are so bold and vibrant. Threw away the over priced dr brown & bought these.

The * are terrible. They wobble and fall over. You literally have to bite the * in order for milk to come out.

Received 3 pack of bottles with missing lids and *. Newborns are weaker because they so young or could have issues that cause poor feeding like jaundice.

The avent bottles aren't leakproof, but, in all honesty, after a few months neither are these nuby bottles. They leak like a running faucet. The lid leaks about half an ounce each time the bottle is angled to feed baby.