The NUK Smooth Flow™ Pro Anti-Colic Baby Bottle & Pacifier Newborn Gift Set comes with two 10 oz. bottles, two 5 oz. bottles, 1 vent cleaning brush, and 2 NUK Comfy™ pacifiers. The NUK Smooth Flow™ Pro Anti-Colic Baby Bottle features an anti-colic venting system proven to reduce baby colic symptoms of gas, extensive crying, and reflux. With an advanced venting system minimizing air bubbles in the milk, baby swallows less air, reducing spit-up and burping. The NUK Smooth Flow™ Pro Anti-Colic Bottle has fewer pieces than the leading anti-colic bottle*, so it's easier to prep, assemble, and clean. And because the nipple and collar is only one piece, there are no leaks, guaranteed. NUK Comfy™ Pacifiers are shaped and sized for newborns, and made with 100% medical-grade silicone that's both soft and durable. A beautiful baby gift idea or baby registry gift.