This Planetarium is a model of our Solar System. Watch the planets move around the sun under the sunlight. It can also be powered by battery when there is no sunlight. Contains 2 Frame with 6 parts, 2 Frame with 4 parts, 1 Spindle and set of arms, 1 Gearbox, 1 Battery holder, 1 Solar panel, 1 Solar panel holder, 1 Pair of wires, 1 Battery cover, 1 Support arm, 1 Motor, 1 Motor cover, 3 Terminal caps, 5 Screws. Also required but not included with this kit: Small crosshead screwdriver, one 1.5 V AAA battery. Age 8+ years. Part of the Green Science range.