Solar powered, educational, enjoyable and challengeable. Include three modes (coaster/boat/helicopter). Develop children’s intelligence and inspire their potential. It can make children grow up with happiness and make them cleverer. Let kids experience the pleasure of Do-It-Yourself. Contain small parts and not suitable for kids under 3 years older. Easy to assemble and play. Caution: this product will not run on a cloudy day, shaded locations, indirect sunlight or under a fluorescent light. Random shipment of different colors.