These replacement vent inserts are for standard size bottles. They are the same vent inserts that come with each Dr. Brown's Natural Flow Baby Bottle, and are meant to replace worn or lost pieces so you can enjoy your Dr. Brown bottle longer.
Dr. Brown's Replacement Standard Vent Inserts
5 Stars based on 1 Review(s)
I would recommend this item to a friend.
July 23, 2013
none of the stores in my area carried just the vent inserts,, if you want to buy them you have to buy the entire bottle,, nice to just buy what is needed