The Philips Natural Glass Baby Bottles with Natural Response Nipples are designed for baby feeding with a capacity of 4 oz. These bottles come in a pack of 4, featuring a slow flow rate for easy digestion. The bottles are made of 70% glass, 10% plastic, and 20% silicone, ensuring a BPA-free material that is safe for babies. The vented design allows for easy cleaning and is compatible with microwave use. The bottles are suitable for unisex babies, making it a convenient and reliable choice for parents looking for a high-quality baby feeding solution. Brand new sealed box. Damaged box!