Philips Avent Anti-colic baby bottles nipples let babies control the flow of milk like with breastfeeding, which can reduce spit-up and overeating. Philips Avent's anti-colic valve flexes to keep air in the bottle and out of your baby's tummy, a feature that reduces fussing and colic. In a clinical trial, two-week-old infants fed with a Philips Avent Anti-colic baby bottle experienced less colic than babies fed with a conventional bottle, with the greatest difference seen at night.

Features:

• Nipple features slot-shaped opening to adjust the flow rate to baby's convenience
• Clinically proven to reduce colic
• Compatible with all Philips Avent Classic bottles

Specifications:

• BPA-FreeDishwasher safe
• Newborn: 0m - 1 hole
• Slow Flow: 1m - 2 holes
• Medium Flow: 3m - 3 holes
• Fast Flow: 6m - 4 holes
• Variable Flow: 3m - Adjustable Slot