1.PC feeding bottle bottle with Liquid silicone rubber nipple. 2.Printing ink is up to European Standard.safe and healthy Material of the parts of feeder:Nipple: nipple is made of food-grade liquid silicone rubber, more sanitarian and safer than ordinary silicone rubber nippleTop head:PP,resist temperature up to 100'c available to sterilizationScrew cap:PP ,resist temperature up to 100'c ...