Slow Flow 0M: Lets a limited flow of liquid through. Indicated for the first few days for milk, glucose or water feeds.
Medium Flow 3M+: Lets all types of medium-density liquids flow. Ideal for milk, juice and very thin purées.
Large Flow 6M+: Its wide opening gives off thicks liquids.
Adaptable Flow 0M+: The flow is proportional to the suction: allows more or less liquid to flow depending on the strength with which the baby sucks