Quantity: 1 Accent your Thanksgiving themed party with this 18 squared Rustic Thankful foil mylar balloon. The perfect balloon for your Thanksgiving party this 18 Betallic 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.