This solar hybrid planetarium rotates with the power of the sun itself or the back-up battery. This planetarium is a model of our solar system. A fun and educational green science kit from 4m. Includes solar system pieces, solar panel and detailed instructions. Build a solar hybrid powered solar system with this kit . This solar hybrid planetarium rotates with the power of the sun itself or the back-up battery. A fun educational toy as kids watch the planets move around the sun. Requires 1 aaa battery (not included). Recommended Ages: 8 Years And Up Measurements: 8.5 Length/Inches Assembly: Assembled Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 15.0px Calibri; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} WARNING: CHOKING HAZARD – small parts. Not for children under 3 years.