his 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. Suitable for ages 5yrs & up. 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.