Ages; 3-12m/

Sensitive Response nipples with Micro Air Vents sense baby's pressure and respond with the right amount of liquid
Patented Micro Air Vents balance air in the bottle and helps prevent nipple collapse
EvenPace nipple system based on age and flow rate
See through silicone material
Fit Evenflo glass baby bottles, Classic Clear polypropylene plastic bottles, and Classic Tinted polypropylene plastic bottles