Features: -Set of 2 -Designed to reduce gas -Anti-colic nipple is part of the Airflex venting system, air is vented into the bottle and away from the baby’s tummy -The ribbed texture prevents nipple collapse and reduces feeding interruptions and discomfort -Clinically proven to reduce colic and discomfort -Anti-colic system proven to reduce colic -60% less fussing at night -Uninterrupted feeding - Nipple shape and ribbed texture prevents collapse -Nipple shape designed for secure latch -Compatible range from breastfeeding to cup -Different nipple flow rates available -This nipple is BPA free -Full compatibility with Classic+ bottle range