I bought these nipples to allow the Blédine added in the milk of my 5 month old baby to flow easily. They fulfill their function very well! My son no longer tired to suck. The Blédine passes easily but without sinking. My 3 year old daughter also takes a pacifier for her morning bottle. And it also fits him perfectly. The small disadvantage is that they are difficult to wash the flat spot because there are small cells that store the milk. It is difficult to remove and you have to think of it!
