The Philips Avent 240ml Infant Bottle is an excellent choice for those who want to combine breastfeeding and bottle feeding. The nipple functions like a breast, releasing milk when the baby actively drinks, differentiating it from traditional free-flow nipples. Just like with breastfeeding, it may take some time for your baby to adjust to this type of nipple. The bottle features an anti-colic valve designed to keep air out of your baby's tummy during feeding, as well as an anti-drip nipple to prevent leakage and milk loss. The bottle is easy to use, clean, and assemble, and is BPA-free for safety.