Within the first day of using it, my son was completely comfortable he has reflux and bad gas which causes him pain and as soon as I gave him these bottles he was burping right (which was hard for him) and happy!

These bottles are brilliant are removing air from the nipple. Our newborn loves these, absolutely no colic (no gas nothing.) my wife pumps straight into these bottles. These are quick and easy, especially to clean.

This is a great pack for new parents or parents that love these bottles and want to quickly add more bottles to their stock. My 4.5 month old son loves these bottles. They're so easy for him to drink out of and he's even starting to "help" hold the bottles. Just be aware of your individual child's needs when it comes to the size flow nipples.