Developed with Pediatric Feeding Specialists Recommended by 9 out of 10 Parents Calm, Gulp-Free Feeding Anti-Gas, 1 Piece Vent Naturally-Sloped Nipple, for a Healthy Wide Latch Bpa Free Free of Polycarbonates, Pvc and Phthalates Includes : 3 Bottles, Slow Flow Nipples, Cap Rings and Hoods Our unique, naturally-sloped nipple promotes a healthy wide latch for baby, by providing a proper resting place for lips, which helps to decrease mouth fatigue. The nipple shape encourages tongue cupping, making it easier for baby to swallow. The slow flow helps to prevent chugging and extra bubbles in tummy. Experts Designed Balance + with: FloRight technology with a slower flow rate for a calm, gulp-free feeding at baby's pace. Effective 1-piece integrated Proflo venting helps prevent colic, gas, and fussiness with no extra parts to clean or lose. Naturally-slopped shape for baby's lips to rest and maintain a healthy wide latch nipple length designed to fit comfortably in baby's mouth. Healthy Bo