Evenflo Feeding Premium Proflo Venting Balance+ Standard Neck, 9 Ounce (Pack of 6)The Evenflo Balance + Standard Neck Bottle was developed with a unique and intentional nipple shape to allow for a proper latch along with an adjusted flow rate that promotes a comfortable drinking pace for baby. These are key components for mom to help support healthy bottle feeding without interfering with her personal breast feeding journey. The gentle feeding system also comes with Evenflo' s patented Proflo venting technology that reduces the