Sounds almost after advertising, but was really so, all suckers from Nuk have tried, no has taken our little one, (is exclusively breastfed) Avent products are indeed slightly more expensive than others, I wanted to not necessarily invest, but our little one has immediately drawn empty a whole bottle with 12o ml at the first attempt, the location of the holes and the shape come to his well-counter (9 weeks old) So I can only recommend breastfeeding children, now I know that the baby is not hungry at least, if I should be even longer than 3 hours away