This Philips Avent Natural Baby Bottle set is perfect for your little one. The set includes four 9oz bottles, all made in the USA with soft and flexible silicone nipples. The bottles feature an anti-colic valve, making them ideal for your baby's delicate stomach. The clear glass bottles are easy to see through, and the breast-shaped nipple ensures a natural response from your baby. With only four parts to clean, this set is perfect for busy parents. The Philips Avent Natural Baby Bottle set is suitable from 1 month and is a must-have for any parent looking for a reliable and comfortable bottle set.