It looks like a tethered balloon, but is not. Really, I would call it a themed elevator. The balloon is made of the same stuff a canopy on the front of a business is made of. The elevator is attached at various places to the tower like structure around it. The platform is lifted up and holds in place until the ride is over. There is no hot air or gas in the balloon shaped top. Pure hokum, but, like I said, themed, pretty well. It appeared kids loved it. Me, I would not pay to go up in it.