Wide, flexible nipple base with extremely soft nipple tip, similar to the mother's nipple
The innovative anti-colic vent system helps prevent air ingestion
For children aged 0-6 months, S (3 tiny holes for breast milk, tea, water), M (6 tiny holes for milk formula)
For children aged 6-18 months, S (3 tiny holes for breast milk, tea, water), M (6 tiny holes for milk formula), L (9 tiny holes for thicker liquids)
Compatible with all NUK Nature Sense Bottles, does not contain bisphenol A (BPA)