Details The naturally shaped, soft silicone nipple is ideal for babies who have trouble transitioning from nursing to bottle-feeding, and features an innovative and sensible design to most closely mimic natural breastfeeding. Your little one will love to hold onto the skin-like, soft and squeezable body that is like no other bottle in the world You will love the wide-neck design for brushless, stress-free cleaning bliss! Equipped with truly innovative vents that are smartly designed to prevent colic, while completely eliminating annoying leaks It is quite possibly the most thoughtful bottle ever made Bottle is for ages birth to 24 months 5-ounce bottles come pre-installed with truly Slow Flow (1 hole) nipples designed for newborns up to 3 months comotomo Replacement Nipples grow with your baby, and are available separately in 4 stages Microwave- and dishwasher-safe BPA-free Imported