Philips Avent Natural Response T3 1m+ teats have a medium flow rate and only release milk when the baby is actively sucking. Babies can drink, swallow and breathe in their natural rhythm, just like at the breast. This makes it easier to combine breastfeeding with bottle feeding. The anti-drip design The nipple opening is designed to release milk only when the baby is sucking. This way, milk leakage can be avoided, wherever the baby is. The nipple releases milk when the baby sucks actively. The Natural Response teat adapts to your baby's natural feeding rhythm, making bottle feeding easier. The teat has a unique opening that only releases milk when your baby is actively sucking. So when your baby stops to swallow and breathe, the milk flow stops too. Breast-shaped nipple The wide, soft, flexible nipple is designed to mimic the shape and texture of the breast, helping baby latch on and feed comfortably. Designed to reduce colic and discomfort The anti-colic valve is designed to reduce air intake from the baby's tummy during feeding, helping to reduce colic. It is recommended for babies from 1 month of age. Store in a cool, dry place.