Quantity: 1 Accent your pirate themed party with this 29 large unique shape Jolly Roger foil mylar balloon. The perfect balloon for your pirate party this 29 Northstar 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. 29 Jolly Roger Balloon by NorthStar Balloons