The MAM Easy Start Anti-Colic Bottle is designed to prevent colic and other common feeding issues. The innovative anti-colic system with a valve at the bottom prevents air bubbles from forming in the liquid, helping your baby drink more relaxed. The unique flat shape of the teat mimics a mother's nipple during breastfeeding, providing a familiar feel for your baby. This makes it easier to switch between breastfeeding and bottle feeding. The teat fits all MAM bottles and trainers. The leak-proof cap can also be used as a measuring cup. The bottle can be easily sterilized in the microwave in 3 minutes – saving time and up to 85% energy and CO2