The Evenflo Classic Clear Silicone Nipples sense baby's pressure and respond with the right amount of liquid.

Features: 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.

*Standard Nipple comes in Fast Flow

*Available in 4 pk

*Does not include bisphenol-A (BPA)