2 Pack Of Bottle Teats Material: Silicone Age: 0-6 Months BPA Free Suitable For Small Feeds (Breast Milk Water) Allow your baby to have a pleasant feeding experience with this bottle teat pair. The bottle teat is made of soft and flexible silicone. The NUK Silicone Teat is naturally shaped to help fit your little one’s jaw and encourage healthy jaw development. With extra soft silicone, the teat helps to provide a familiar feeling while drinking. The teat features a innovative anti-colic vent that helps prevent your little one from swallowing air whilst feeding.