Decorate your baby boy themed party with this 58cm large unique shape It's A Boy Baby Bottle foil mylar balloon. The perfect balloon for your baby boy party, this 58cm Anagram 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.