This is a decent balloon powered car. You have to use nails to secure the wheels in place. Comes with an extra wheel in case one breaks.
The wheel hole might have to be drilled to a bigger size depending on the size of the nail being put through it. Make sure the wheel spins for a good amount of time before stopping. With the wheel on the nail, hammer the nail into the circular axle holders on the side of the vehicle. make sure they will not fall out. Use glue to hold them in if necessary. Put the balloon on the circle with a hole in it on the top of the car. make sure it can't blow off. blow up the balloon and watch it fly.
If you don't want the wheels permanently on do not use glue to secure the wheels.