Inner Glass,Outer PP for Milk Baby Bottle free of BPA Non-toxic, heat-resistant 200 degrees Pass ... 207°C±10)Bottle Thickness2.5mmBottle Diameter:54mmNipple Diameter:Wide ,narrow or flatPore Size:Small, Medium,Big avialableCapacity:120ML ,160ML,180ML,240ML ... minutes disinfection before use.2012 Latest design Silicone baby bottle, feeeding bottle,good gift for baby !Should you have any questions, pls do ...