Unique, naturally-sloped nipple promotes a healthy wide latch; recommended by 97% of parents 1-piece integrated venting helps prevent colic, gas, and fussiness A slower flow rate for calm, gulp-free feeding Developed with Pediatric Feeding Specialists The Shape: Naturally-sloped shape for baby’s lips to rest and maintain a healthy wide latch; nipple length designed to fit comfortably in baby’s mouth. The Vent: Effective 1-piece integrated vent helps prevent colic, gas, and fussiness with no extra parts to clean or lose. The Flow: The included Slow Flow Nipple has an intentional, slower flow rate for a calm, gulp-free feeding at baby’s pace. Balance + Wide Neck Nipples are available in the following flows: Slow, Medium* and Fast* (sold seprately). Pump to Feed: Pump directly into your Balance + Wide Bottle with the Balance + Pump Adapters (sold seprately).