At a Glance Tommee Tippee Closer to Nature Easivent Variflow Teats have been designed with breastfeeding experts to mimic the natural movement and softness of mum's breast, making switching between breast and bottle easier than ever before............. Features and benefits for Tommee Tippee Closer to Nature Easivent Variflow Teats - 2 Pack Super sensitive anti-colic valve Soft natural feel silicone teat with unique, easy latch-on shape BPA free Adjusts to baby's individual feeding needs Want To Know More? Tommee Tippee Closer to Nature Easivent Variflow Teats have been designed with breastfeeding experts to mimic the natural movement and softness of mum's breast, making switching between breast and bottle easier than ever before. The Variflow teat design allows your baby to control the flow of their milk simply by using their own sucking strength - the stronger your baby sucks, the wider the cross opens and the faster the milk flows............ Tommee Tippee Closer to Nature Easivent Variflow Teats are a great teat for babies from birth, as your baby is able to get as much or as little as they need, while the Easivent anti-colic feature on the teat's surface reduces the risk of baby swallowing air with his feed, thought to be one of the main reasons for colic............ So you don't have to worry about when to change flow rates as your baby will know exactly what they're doing! What's in the box: 2 x Easivent Variflow Teats