AVENT Teats - clinically proven to reduce Colic in Newborns.The Avent
teats are numbered 1 to 4 with 1 being the slowest and the softest, and 4
being Fast Flow - Four Holes Recommended for babies 6 months and older.With the Philips Avent Classic+/Anti-colic Teats, your baby controls milk flow, w..