DesignBottle designTransparentMaterialBottlePolypropyleneBPA free*NippleSiliconeBPA free*What is included9oz/260ml Baby Bottle2 pcsMedium Nipple2 pcsFunctionsNipple FeaturesNatural latch onNo-drip designSoft and flexibleAnti-colic valveBottle designWide neckErgonomic shapeBottle ease of useEasy to assembleEasy to cleanDishwasher safeEasy to holdDevelopment stagesStage3-6m