All bottles have smooth internal neck and no sharp edges, therefore no germ traps, and is perfectly safe to use.
Anti-Colic teat lets air into the bottle as your baby feeds. This stops the teat from collapsing, enabling him to get a steady stream without gulping air and causing colic in babies.
Able to obtain the perfect ratio of room temperature water to hot water so that your baby will have the optimal temperature when they feed.