KOSMOS 620684 Easy Electric Green Energy, Store and Use Renewable Energy, Amazon Exclusive, Experiment Box for Children from 8-12 Years to Generate Electricity

KOSMOS 620684 Easy Electric Green Energy, Amazon Exclusive, Store and Use Renewable Energy, Experiment Box for Children from 8-12 Years to Generate Electricity

KOSMOS 621070 Eco-Haus - Use Energy Clever - Your Large Test Model, Experiment Box for Children from 8 Years on Solar, Renewable Energies and Sustainability

fischertechnik 559879 Professional Green Energy – Kit for Children from 9 Years – Experiment Box for Solar, Wind Power and Hydropower – Includes Solar Panels & Solar Motor – 46.51 x 8 x 23.01 cm