Less is more. The Born Free breeze nipple is easiest to clean with its single piece design. ?Just like Mom,? the breeze nipple makes it easy to alternate between breast and bottle. The anti-colic design ActiveFlow vent is included in the nipple and puts baby in flow-control. Breeze nipples are BPA-free. </br>Features: </br>For use with Born Free breeze plastic & glass bottles. Easiest to clean & assemble single piece design. Level 2 medium flow 1m+. BPA-free. Anti-colic design with ActiveFlow vent included in nipple. "Just like Mom" nipple makes alternating between breast and bottle easy.