These Nuk bottles are designed for newborn babies, so you can use them right from birth. The temperature indicator changes colour so you know if the milk is too cold or hot, making sure it's perfect for your baby. Its vacuum-free ventilation system helps to reduce colic so your little one is fed and happy. The soft and flexible teat gives a more natural experience to help with feeding. No more milk residues or spilling over - its wide neck makes filling and cleaning a breeze.