Active-Latch ™ Bottle Cap and Protective Cap: The Active-Latch ™ bottle cap can be attached directly to the Twist Pouch ™ milk storage bag to completely eliminate the transfer of milk from the storage bag to the bottle, dirty dishes and the gas problem in your baby's milk. The Active-Latch ™ bottle nozzle is designed to teach the natural sucking habits to the baby and to facilitate the transition between the breast and bottle. Thanks to the special design of the Active-Latch ™ bottle nozzle, the baby improves the reflexing of sucking and breast massaging, as when sucking milk from the mother's breast, and prevents the suction laziness between the bottle and the mother's breast. Properties: It is a patented product that is in contact with milk and requires cleaning only 1 piece! Since Twist Pouches ™ storage bag can be folded, the gas problem in the baby's milk is completely eliminated without the need for a ventilation mechanism. The bottle heads are sold with protective caps. Protective caps protect your bottle head and keep it clean. There is no need for complicated extra parts such as leaks, leaks, spillages, bracelets and spacers. You can purchase the Active-Latch ™ bottle nozzle according to different ages and preferences, with 3 different alternatives providing slow, medium and fast flow. It is suitable for recycling. It does not contain BPA, PVC and Phthalates. washed in the top rack of the dishwasher. It can be put in a steam sterilizer. It is used with the Active-Latch ™ bottle cap, Kiinde Twist Pouch ™ storage bag and Kiinde Squeeze ™ bottle.