Bring your Batman party to life with this 28 large unique shape Batman In The City foil mylar balloon! This Unique balloon features Batman ready to defend Gotham City behind him and is perfect for using in a Batman themed balloon bouquet or room decor. Pair with some of our other Batman foil mylar and latex balloons for a great design! 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.