Decorate your baby general themed party with this 45cm square shaped Oh Baby! It's Twins foil mylar balloon. The perfect balloon for your baby general party, this 45cm CTI 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.