The MAM Easy Active Baby Bottle 2nd Age is designed for babies 6 months and older. It features an ergonomic design for easy grip by both baby and parents. The ultra-fast flow is ideal for babies who have learned to drink faster. The bottle is compatible with all sizes of MAM teats, allowing customization to suit baby's needs. MAM SkinSoft silicone teats are easily accepted by 94% of babies, making the transition from breastfeeding to bottle easier. The bottle is BPA and BPS free, and can be used with breast milk or infant formula. The leak-proof cap can be used as a measuring cup. The wide opening makes it easy to clean.