Second Nature Natural Feeding System 9oz Bottle

The unique Second Nature Bottle truly works like Mom's breast. When your baby latches onto and suckles a Second Nature Nipple, the membrane flexes, opening up many small holes which allow milk to flow. The stronger your baby suckles, the more the nembrane flexes, the larger the holes become and the more the flow increases. This allows your baby to be in control! When your baby stops suckling, the holes close and immediately the flow stops. This allows your baby to rest, just like at the breast. minimize