... and non-toxic, 100% food grade silicone 2.Soft,unbreakable 3.Milking function can ... Key characteristics1.Made of 100% food-grade silicone,non-toxic,dose not contain sphenol a, ... not contain harmful substances.2.Soft,unbreakable.The bottle body for all the nipple material,very soft ... breast milk.3.Hight temperature resisitance, aging resistance.Silicone can withstand 250 ÂșC of hight temprature,water ...