With the high-quality Philips Avent Natural Response Nipple SCD657/11, babies can drink, swallow, and breathe in their natural rhythm. Thanks to its unique opening, it only releases milk when the baby is actively drinking, supporting the natural sucking rhythm. Its wide, soft, and flexible design mimics the shape of the breast, providing the baby with a natural drinking experience. Additionally, it is equipped with an anti-colic valve that minimizes colic and discomfort. The drip-proof nipple design prevents milk from spilling. User-friendly, easy to clean, and quick to assemble. Compatible with the Philips Avent range. Includes an ultra-soft pacifier for your baby's sensitive skin, 4 Natural Response bottles, and a bottle brush.