\ the integrated temperature control indicator changes colour when the food is too hot. the blue indicator turns white. \ extra soft teat with orthodontic shape: rubber size 1 (0-6 months) m (medium hole) \ clinically proven: for the optimal combination of breastfeeding and bottle use* \ prevents colic thanks to the improved anti-colic air system \ easy filling and cleaning of the bottle thanks to the large diameter spout \ bottle made of high-quality, durable glass, 240ml capacity, BPA free \ \ \ the right temperature, even when you're on the go – nuk first choice+ glass bottle with temperature control indicator \ when you're on the go a little extra safety is so welcome! the nuk first choice+ bottles with temperature control indicator show at a glance when the contents of the bottle are at the right temperature. \ with the temperature control indicator, the scale on the bottle changes colour depending on the temperature of the contents of the bottle. If the food is too hot, the blue indicator turns white. \ \ important: \ the nuk temperature control indicator is considered an additional control. The temperature of the food should therefore also be checked by hand before the actual feeding. To check the food, a few drops are enough on the inside of the wrist. \ \ the original \ the original nuk nipple is designed according to the mother's nipple during breastfeeding. This gives the tongue and jaw plenty of space – and babies the feeling they love. \ \ the most natural nipple for your baby \ nuk's first choice series has been the first choice of consumers for years for bottles designed with breastfeeding in mind. With the NUK First Choice+ products, we have managed to get even closer to the natural way of feeding, aiming at the healthy development of the child's jaw and simulating the feeling of breastfeeding from the mother's breast as much as possible. \ \ Natural shape, adapted to the jaw \ The special shape of the NUK nipple is based on the shape that the mother's nipple takes when the baby is breastfeeding. It provides the necessary space for your baby's tongue and jaw, so that natural breastfeeding movements can be made with ease. \ \ Soft like the mother's breast \ With the new soft zone (softzone) it has, the nipple adapts to the palate even better – for a natural breastfeeding feeling. \ \ Prevents colic \ The improved anti-colic air system allows the natural flow of food, so that your baby drinks comfortably and relaxed, without swallowing air. \ \ clinically proven \ its particularly natural shape makes the nuk nipple particularly popular with breastfed babies. For this reason, it is ideal for babies who combine bottle feeding with breastfeeding.* \ \ the nuk first choice+ bottle is made of glass: \ \ \ hygienic, high-quality, durable glass, pleasant to the touch \ free of fragrances and harmful substances – without bisphenol a/s, without phthalates** \ easy to fill and clean – with an extra wide mouth \ safe grip and base – bottle that tapers slightly in the middle and has a wide base \ can be combined with all nuk products in the first choice series \ \