NaturaLatch Nipple is made specifically for babies switching between breast and bottle. Standard surface area to mimic average nipple size of mothers. , Playtex provides a range of nipples designed to closely mimic the natural breast, allowing baby to latch on more easily and help reduce nipple confusion. All Playtex Nipples fit all Playtex Bottles! , Designed for versatility and convenience once you find the right Playtex Nipple, you can use it with all Playtex Nurser and VentAire bottles. Say goodbye to endless sorting!