4M Solar System Construction Kit With this beautiful kit you can recreate our solar system! See how the planets move around the sun. This system works on solar energy, but can also run on batteries in the dark. Specifications: Color: multicolor Gender: junior Material: plastic Package dimensions: 27 x 20 x 6 (L x W x H) Age: from 5 years Batteries: 1 x AAA battery (not included)