Details: Anti-static valve: avoids the risk of ingestion of the air by reducing colic, hiccups and regurgitation. Embossed Rings: Increase elasticity and elongation of the nipple by simulating the nipple. Wide base: Its size ensures the best support of the baby's lips by helping it in the sucking. Ergonomic bottle: it provides a practical and easy fit for the baby and for mom. Anti-dropping cap: Ideal and safe during transport. Fast Flow.