Kids with a yen for learning about the solar system will get the most from this motorized model of the sun and nine planets of the Milky Way. The sun was lit up by a small light bulb that could illuminate a star dome with the constellations as well. While science-minded children liked the rotating action of this model, the toy was not to scale. This was a toy that was meant to be watched and not played with, as it tended to be fragile, and would be most useful in a classroom setting. NOTE: Four "C" batteries (not included) or AC adaptor required (included).