Philips Avent Natural bottle is the most natural way to feed. The wide breast shaped nipple promotes natural latch on so you can combine braest feeding and bottle feeding.Our flexible spiral design combined with comfort petals allows for natural movement while feeding. The nipples have Airflex technology to help reduce colic and discomfort by venting air away from baby's tummy. BPA Free What's in the box 2x 260ml blue bottles, 2 x125ml blue bottles, blue soother and bottlebrush