Kids love to construct and the TG Wacky Robot kit is the perfect way to encourage them to build. With its 80+ colorful construction pieces, power motor and more, this kit includes everything your child needs to build his own robot with motorized gears. The mechanics of the robot include gears and will introduce and experience the science of gear ratio. This product aligns with the Science, Technology, Engineering and Math standards. Requires one AA battery (included). Ages 8+ years.