Having struggled a few weeks because my son of 5 months, breastfed, refused the bottle, I tried my luck by purchasing this model. 1 good point, he has the wide neck but returned without problems in my bottle warmer another brand (which does not accept all the bibs off passes) and then the nipple really has a nipple shape and is thus perfectly adapted to the palate of my little piece. So I did a test on, and right after that baby could never drink the bib, adopted it! He has not even had half a second while I galérais for weeks. So I highly recommend it and I would do the pub to new and expectant mothers around me. Bravo and thank you NUK.