The Philips Avent glass baby bottle set offers the perfect feeding solution for your little one. This pack of three 4oz. bottles features a natural response nipple that lets babies drink, swallow, and breathe naturally. The wide, breast-shaped nipple offers a smooth and comfortable bottle feed. An anti-colic valve directs air away from your baby’s tummy, reducing discomfort. | Philips Avent Glass Natural 4 oz. Baby Bottle Set - 3 Pack