Accent your Halloween themed party with this 54 inch large unique shaped Glow Batty Bat foil mylar balloon. The perfect balloon for your Halloween party, this 54 inch 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.