Quantity: 1 Celebrate that special someone s birthday with this fun 18 round Feliz Cumpleanos Skully Pink foil mylar balloon! Combine a couple of these 18 Northstar 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. 18 Feliz Cumpleanos Skully Pink Balloon by NorthStar Balloons