All aboard matey! It's time to decorate the decks with this 91cm large unique shape Jolly Pirate Ship foil mylar balloon. The ultimate balloon for your pirate party, this 91cm Northstar party balloon is perfect for creating a wonderful experience! 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.