Perfectly Portioned for Baby's First Feedings Recipes Included Family of Brands for Your Baby's Well-Being PVC Free Petroleum Free Stackable Hypoallergenic Dishwasher Safe Fresh baby food freezer tray clear lid for covering food & stacking trays flexible for easy removal 1 oz (28 ml) portions for convenience durable, nonbreakable, & heat-resistant silicone store frozen cubes in a freezer bag to reuse tray multiple colors available for easy organizing Materials: Silicone green sprouts products meet or exceed safety standards for the US.