Assemble models and discover how gears work. With more than 130 interchangeable components, use the instructions included or download the Science & Play Build fee app and use this science kit to experiment with motion transmission by constructing 2 models with fuction mnechanisms. A triple-engined helicopter and airboat. This set promotes STEM based activities and helps in the acquisition of new skills. Promotes manual skills to shape your ideas, Brain Power to hypothesise and experiment and stimulates creativity to develop brand-new projects. Suitable for Ages 8 years and Up. Made In Italy