Building kit Hybrid Marble Track Spiral on Solar energy or on battery wood

Build your own solar-powered marble track.   Let the sunshine hit the solar panel and the marbles will start rolling.   A fascinating spectacle.   Also possible to run on battery power.    Dimensions (l x w x h, in cm.):15x10.5x12 Difficulty: Easy- Medium Construction time: approximately 1 hour Package contents: - Wooden building plates where you can easily print out the parts - engine - solar panel - wiring - glue - 3 steel marbles - battery box (batteries not included - 2x AA) The instructions for use are in English, but consist almost entirely of clear photos, All wooden building kits from Kitcreatives are made of higher quality FSC-certified wood.