Narrow Neck Polypropylene Bottle Sippy Spout (Set of 2 Spouts)

Very good quality..n comes in a pack of two! Very easy to transition from regular bottle nipple to sipper style

Its does not fit avent sipper bottle.

I have a 16 month old boy and this is what I use for him when I give him milk. Some moms are super against bottles after 1 so if that’s you, buy a sippy cup. I really liked these for multiple reasons. One, my child transitioned to these very easily. I was giving him other sippy cups prior to this though. Two, these don’t leak unless your child turns it upside down and bangs it on the floor (which they will probably do anyways). 3 I can continue using the Dr. Browns bottles and my bottle washer. I love these and they work well for what I do. I would highly recommend these especially if you are having a hard time getting your child off the bottle.

Terrible

They are great for transitioning from a nipple to a sippy.

My son is learning how to drink water and he's not quiet there yet with sippy cups. I have tried several different sippy cups and he doesn't seem to like them. We were already using the Dr. Brown bottles so we purchased these to help him learn how to drink water. Since they fit onto the bottles we already have my son recognizes his bottles and wants to drink with these. They are also much easier for my son to drink with than traditional sippy cups. For right now they work great and we will try to transition him to sippy cups again when he's a little older. The only problem I have had is with the smaller 4 ounce bottles they sometimes leak but the larger bottles don't seem to have this problem. The small bottle leaks are not enough for me to be bothered by it.

These were a fantastic transition from baby bottle to hard plastic sippy cups. We found the hard plastic to be too slow. We used these for quite a while and kid never complained.