1.Safe and non-toxic, 100% food grade silicone 2.Soft,unbreakable 3.Milking function can squeeze the milk to the baby to drink Key characteristics1.Made of 100% food-grade silicone,non-toxic,dose not contain sphenol a, dose not contain harmful substances.2.Soft,unbreakable.The bottle body for all the nipple material,very soft, full sense of breast milk.3.Hight temperature resisitance, aging ...