Accent your St. Patrick's Day themed party with this 24" large unique shape St. Patrick's Day Satin Top Hat foil mylar balloon. The perfect balloon for your St. Patrick's Day party, this 24" 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.