The NUK Smooth Flow Pro Anti-Colic Baby Bottle features an advanced venting system that reduces baby colic symptoms such as gas, extensive crying, and reflux. The bottle is designed with fewer pieces than leading anti-colic bottles, making it easier to prep, assemble, and clean. The one-piece integrated bottle and collar ensure no leaks, and the unique Y-cut nipple design allows the baby to control the flow of milk with their suction strength for comfortable, colic-free feeding. The SafeTemp indicator shows when the milk is too hot, ensuring safe feeding. The bottle is BPA-free, dishwasher-safe, and has a capacity of 10 fluid ounces.