The fountain rocket creates an out of this world bath time experience submerge in your tub or pool and blast off from the water to create an amazing water effect watch as the starfish wiggles and floats as you fill and empty it over and over again an ideal way to introduce pouring water over a young child39s head the water surrounds the face for a magical domed water fall whether in you are tub or pool your little one will have a blast the fountain rocket does not require batteries fil