Our large 100cm Betallic Number 6 Megaloon foil mylar number balloons are the ultimate way to enjoy someone's birthday, a couple's anniversary, the anniversary of a business and for marketing a special priced product at a business! These huge balloons are great for bouquets, photo backdrops, on the top of balloon columns, incorporated into a balloon arches and more. Add colour coordinating mylars and latex balloons for the ultimate balloon bouquet! 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 to hang. Balloon arrives uninflated.