Dr Browns Newborn Starter Set Option + Narrow Neck

The market's first convertible bottle that can be used with or without the vent system.  It helps reduce feeding problems, helps digestion and helps preserve vitamins. Some mums and dads find removing the vent a convenient option as their baby's feeding becomes more developed. The nipple venting creates a paced flow, and provides a feeding experience similar to most nipple-vented bottles.