Includes one easy to clean BPA-Free 4oz LATCH bottles, one stage 1 nipple and one sealing disc

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Nipple stretches and moves like the breast helping baby latch correctly and continuously to help reduce colic

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Anti-colic valve prevents air bubbles to reduce gas

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Pressure against the nipple releases milk as baby sucks, just like the breast

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Pump adapter is compatible with leading breast pumps, including many Medela, Lansinoh, and Evenflo pumps, adapter sold separately

nBetter LATCH: Proper LATCH is achieved when mom's nipple reaches all the way back to baby's soft palate. The accordion-style nipple on LATCH stretches like the breast, helping baby LATCH easily and correctly. Like the Breast: When breastfeeding, baby controls the flow of milk by applying pressure to the base of mom's nipple. The LATCH bottle mimics mom by releasing more breast milk as baby pushes against the nipple's base. Less Colic: While feeding, the accordion-style nipple flexes as baby moves her head. This allows baby to maintain her LATCH, thus decreasing ingestion of air. Anti-colic valve: The ant-colic valve located at the bottom of the LATCH bottle allows for breast milk to flow while ensuring air bubbles do not travel through the breast milk. Slow-flow nipple: Experts agree that the best transition occurs when bottle flow and mother's flow match. The LATCH Stage 1 nipple's flow has been reduced to mimic the flow of the breast. Stage 2 and 3 are also available, allowing you to increase the flow as your baby grows. BPA-free