"?Celebrate that special someone's birthday with this fun 18"" round Yum Sweet Treat Birthday foil mylar balloon! ?Combine a couple of these 18"" Anagram balloon designs with a few of our birthday latex balloons to create a bouquet cluster to give someone as a special gift or to use as birthday party decor. ?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. ?Yum Sweet Treat Birthday Foil Mylar Balloon 18"" by Anagram "