4M solar system construction kit With this beautiful package you can build 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 old Batteries: 1 x AAA battery (not included)