Out of packaging, but never used. 3 pack, 4 oz bottles. See description below: Natural Bottle with Natural Response nipple Baby controls the pace, just like breastfeeding • Designed with a unique opening and tip which only releases milk when baby actively drinks. When pausing to swallow and breathe no milk flows, just like at the breast. • Easy to combine breast and bottle feeding with a wide breast-shaped nipple with a soft feel that mimics the shape and feel of a breast and baby controlling the flow of milk. • No-drip nipple design helps prevent lost milk from the tip, giving you peace of mind • Anti-colic valve is designed to reduce colic and discomfort by sending air away from your baby's tummy • BPA Free