The pink ChuChu bottle was used for about a year, and the other two were used 1 or 2 times. They have been sterilized. ChuChu Glass Bottle 240ml (for all ages) NUK Plastic Bottle 300ml (for 0-6 months) [Safety and Functionality] Made of plastic, it is lightweight and durable, designed for easy handling by babies. It has a scale, so you can easily check the amount of milk. [Convenient Sizes] Available in two sizes, 150ml and 240ml, allowing you to use them according to your baby's growth. - Brand: NUK ChuChu - Colors: Pink, White, Brown, Green - Capacity: 150ml, 240ml - Material: Plastic - Scale: Yes (in ml) - Accessories: Baby bottle nipple (1) Thank you for looking.