Quantity: 1 Junior Shape Accent your casino themed party with this 21 large unique shape Black Club foil mylar balloon. The perfect balloon for your casino party this 21 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. Black Club Foil Mylar Balloon | 21 | Anagram