LOONBALLOON Hollywood Balloons, 21 inch Black Holographic Star 2 pcs, Holographic Star-Shaped Balloon, Accent your party decor with this solid color 21in. Black Holographic Star foil mylar balloon. Incorporate this star shaped balloon into a balloon bouquet, on top of balloon columns or other balloon decor. Add color coordinating mylars and latex balloons for the ultimate balloon bouquet! This balloon includes a self-sealing valve, preventing the gas from escaping after it’s inflated. The balloon can be inflated with helium to float or with a balloon air inflator to hang. Balloon arrives uninflated. 21in. Black Holographic Star Foil Mylar Balloon