It's a realistic model of our solar system, so you can actually see how the Sun and all the planets interact.Listen and learn about the Sun and the 8 planets that make our solar system with the "Solar Controller" is an interactive control panel with a button for the Sun and each of the 8 planets.Press these and listen to real facts,figures and a description of each planet. What's in the box 1 x Sun 8 x Planets