Dr Brown's Options+ Anti-Colic 60ml Preemie Bottle has been specifically designed with premature babies in mind. The small bottle and Preemie teat helps premature babies who have a poor sucking reflex. Suitable from birth. Dr Brown's Options+ Anti-Colic 60ml Preemie Bottle has the Natural Flow Feeding system that has been shown to be of benefit to premature babies who have a poor sucking reflex and have problems competing with the vacuum found in unvented bottles. The small 60ml bottle is ideal to use with Preemie babies who struggle to hold large amounts of liquid. Dr Brown's Preemie Bottles are widely used on Neonatal Units around the country. Each comes with a Preemie teat which is 47% slower than a level 1 teat. Key features of Dr Brown's Options+ Anti-Colic 60ml Preemie Bottle Can be used with or without the removable internal vent system Breast-like teat shape Small 60ml bottle Preemie teat which is 47% slower than a level 1 teat Easy to use