Nipple: 100% food grade silicone. heat-resistant to -50-200 sterilizable
Bay Feeding bottle and nipple: The food grade silicone, without any nitrosamines, withstand the high temperature until 240C(or 464F).It can be boiled disinfection and microwave disinfection
Cap: Environmental friendly PP. It can heat 120C or 248F. It does not contain BPA, and can be boiled disinfection
Witch cover and base: Environment-friendly ABS plastic. It can heat to 120C or 248F. It does not contain BPA, and can be boiled disinfection PP Handle