To celebrate the future baby's arrival, this "Hello Baby" balloon is perfect! It is made of mylar material (aluminum) in a round shape. In pastel colors, it will be perfect for both a girl or a boy!
Sold as a single piece.
Ref : FOIL3476
They can be inflated with normal air, in which case they won't float away. They can also be inflated with helium, in which case they float to the ceiling, so they should be tethered to a weight. They last for a few hours.