Allows for easy transition between breast and bottle. Wide neck nipple for easier latch on. Graduations in milliliters and ounces. Hygiene cap seals the nipple for travel. Contains 3, 9 ounce bottles Tommee Tippee Closer to Nature 9 ounce Bottle is intuitively designed for easier and more natural feeding. The unique, natural shaped nipple mimics the natural feel, flex and movement of breastfeeding, similar to mum's own natural feeding action. All features combined provide baby the most natural alternative to breast feeding and allows mum to successfully combine breast and bottle feeding. Contains 3 9 ounce bottles with Slow Flow nipples. BPA and Phthalate free.