Celebrate that special someone's 21st birthday with this fun Shape 86cm My First Birthday Foil Balloon. Combine a couple of these Kaleidoscope 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.