Solar powered, educational, enjoyable and challengeable. Safe design, environmental protection and power saving. Made up of one boat hull, two paddle blades, two paddle shafts, two paddle rings, one rubber, one gearbox and one solar panel. 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. Recommended for kids above ten years old. Easy to assemble and play. Powered by solar panel. Caution: this product will not run on a cloudy day, shaded locations, indirect sunlight or under a fluorescent light.