Celebrate any birthday in style with the spectacular Black and Gold Happy Birthday Mylar Balloon. This balloon features a fun gold and white striped design overlapped with decorative text reading “Happy Birthday”. Complementing other Black and Gold birthday party supplies, the 18″ round balloon is sold one per package. The Black and Gold Mylar Balloon makes set up easy, and clean up a breeze! Color: MultiColored. Gender: unisex. Pattern: Letters.