Popyum Blue Baby Bottle Set 4-pack With White Drying Rack & Clear Drying Mat BundleTwo blue 5 oz (150 ml) bottles with #1 slow flow anti colic nipples Two blue 9 oz (260 ml) bottles with #2 medium flow nipples Bundle includes a glacier white space saving drying rack Clear frosted silicone drying mat, 12 x 16 in (30 x 40 cm), folds for storage Bottles store formula and water separately for one handed use Press buttons to release and mix contents before feeding Breast milk stays isolated until released into the nipple area Designed