Give your decorations some flair with the Balloon 30th Birthday Mylar Balloon. This foil party balloon measures 18" when inflated and features multi colored dots on a black background and a large number 30 made out of balloons in the center. This metallic balloon can be combined with any of our other Balloon 30th Birthday party supplies. With wholesale pricing and bulk quantities, our Balloons 30th Birthday Mylar Balloons 10 ct are perfect for event planners, caterers, and home hostesses alike.