LOONBALLOON Music Balloons, 18 inch ROCKSTAR - ROCK ON GUITAR, 3 Gold Latex Set, Accent your music themed party with this 18" round Rockstar - Rock On foil mylar balloon. The perfect balloon for your music party, this 18" party balloon is great for setting the scene! 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. Balloon arrives uninflated. Rockstar - Rock On Foil Mylar Balloon | 18"