Part of the Natural collection Suitable for ages three to six months Three-pack set includes three 9oz. (260ml) baby bottles with natural response nipples flow Let babies control the milk flow, similar to breastfeeding Unique opening and tip release milk only when the baby drinks and not while swallowing or breathing, maintaining their natural feeding rhythm Wide, breast-shaped nipple gives a soft, natural feel No-drip nipple design prevents milk spills, ensuring a mess-free feeding experience Anti-colic valve sends air away from your baby's tummy, reducing discomfort Made from polypropylene and silicone for enhanced durability BPA, PVC, and phthalate-free means your baby's food is safe and no harmful chemicals Dishwasher safe for easy cleaning Microwave-safe design allows you to easily warm these bottles