Made of high quality PP Plastic Capacity bottle 150ml/5oz Additional safety of temperature indicator. If the food is too hot, the normally blue indicator turns white. Comes with NUK Premium Choice+ silicone teat S1 M (for 6+months) Has original NUK Teat with the NUK Anti-Colic Air System Twin pack That feels good! When things get crazy, a little additional safety just feels so good. NUK Premium Choice+ Baby Bottles with Temperature Control show at a glance when the right drinking temperature is reached. With Temperature Control, the scale on the bottle changes colour depending on the temperature of the contents. If the food is too hot, the normally blue indicator will turn white. As soon as the contents reach the ideal feeding temperature, the scale turns a medium blue colour. Every NUK Premium Choice+ Bottle has the original NUK Teat with the NUK Anti-Colic Air System. It ensures a natural flow to help your baby drink without swallowing air. 99%* of mothers confirm that the NUK Premium Choice+ Bottle does not cause colic. The teat is modelled on a mothers nipple as she breastfeeds. This gives your babys tongue and jaw sufficient room for natural sucking movements. Important: NUK Temperature Control is intended as an additional check. Therefore, the temperature should still be checked manually before actual feeding. To feel the temperature of the contents, put a few drops on the inside of your wrist. *Independent market research; 205 mothers, Germany 2018.