Avent SCF652/27, The Philips Avent SCF652/27 is 2 pack set of natural slow flow nipples whose unique valve on the nipple flexes to baby's feeding rhythm. This nipple helps to make bottle feeding more natural for baby. The nipple features an innovative petal design for natural latch on similar to the breast, making it easy for baby to combine breast and bottle feeding. These nipples are made of soft, durable silicone, which are compatible with b baby bottles. SCF652/27 Features: Made of BPA Free MaterialEasy to CleanNipple Type: Natural Breast ShapeSlow Flow Nipple System: Anti-colic# of Holes: 2Age: 1m, Natural Latch On - Makes It Easy for Baby to Combine Breast & Bottle Feeding, Silicone Material, Unique Confort Petals, Wide Shape Like Breast, Compatible w/ Classic Philips AVENT Natural Bottles.