Accent your train themed party with this 25" large unique shape Choo Choo Train foil mylar balloon. The perfect balloon for your train party, this 25" 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.