mimijumi - a mother's love What's in the box: - 2 Very Hungry (8 oz) baby bottles - 2 Not So Hungry (4oz) baby bottle - 4 (0-12M) Slow Flow nipples - darker - 4 red travel caps for bottles With natural colors, textures and forms, the mimijumi baby bottle provides the perfect complement to breastfeeding essentials and the best possible transition to bottle feeding. The innovative nipple design of our infant bottles replicates a mother's breast, creating a natural feeding and latching experience for a happier and healthier bottle-fed baby. The nipple flattens and stretches while feeding, behaving like the breast. Integrated venting prevents colic, while the one-piece construction means fewer parts to clean. Only the safest medical and food-grade silicone is used in all our baby essentials for a healthy bottle feeding experience for your baby. Milk flow is regulated by the baby (like the breast), so each nipple "stage" lasts for about 9 months to one year such that the two stages of nipples are all that is needed. Mimijumi anti-colic baby bottles offer two different flow rates: FR1 Slow Flow nipples (0-12 months) and FR2 Fast Flow nipples (6-18 months). The clear body of our baby bottles is angled for comfort and has measurement markings to show how much is inside. Each bottle has only two parts and can be assembled one-handed. A wide opening makes filling and cleaning easy. All parts are top-rack dishwasher safe. The nipples can be cleaned in microwave sterilizer bags. The bottles are NOT microwave safe. At mimijumi we are dedicated to your baby's health. All mimijumi bottles are BPS, BPA, EA and latex-free and exceed EU standards on safety. As of 2011, all production has been moved to a European facility known for its best practices and clean production standards.