Tommee Tippee Natural Start Baby Bottle Teats, Fast Flow, 6m+, Thick Feeds, Pack of 2.The most breast-like teat. Makes switching from breast to bottle and back again, easy. • Breast-like shape for natural latch • Soft silicone flexes and stretches like a breast • Anti-colic valve, keeps air away from baby’s tummy • Different flow rates, so baby can feed at the pace they need It’s also BPA free. Natural latch: Our bottle teats are shaped to encourage a natural latch, reducing air intake and preventing nipple confusion when switching between breast, bottle and back again.Anti-colic valve: Tommee Tippee Natural Start teats feature an innovative anti-colic valve which reduces air ingestion, helping to reduce the symptoms of colic.Pace feeding: The soft silicone teat flexes and stretches like a breast and allows your baby to feed comfortably at their own pace. Flow rates: Tommee Tippee Natural Start teats are available in varying flow rates, to keep up with your baby's growth.BPA free: All Tommee Tippee teats are BPA free for added peace of mind. Tommee Tippee was founded over half a century ago, born from a mission to make life easier for parents. For decades we’ve been designing products that enhance a parent’s intuition, and engineering solutions to make caring for babies easier, simpler, and more instinctive. You’ve got this, we've got you. Natural latchAnti-colic valve.Pace feeding Flow ratesBPA freeFor thicker feeds.