I purchased this on a flea market app. It's a glass bottle. I used glass bottles when my baby was young to cool the milk quickly. When my baby got older, I used the 240ml bottle when going out. Of course, the 240ml bottle also came in handy when I forgot to wash the bottles. When the baby is young, the bottle rotation is too fast... I would make the milk at home in the 240ml bottle at the right temperature and then go out. By the time it was milk time, it was the right temperature, or a little hot, but because it's glass, I could cool it down quickly by running water over it. It was very useful. I have one S-size nipple, so I'll include it if you need it. There is a scratch on the yellow cap from when I bought it. #BabyBottle #Glass #240ml #160ml