Introduce your child to the exciting world of eco-friendly energy with the Greenex Eco-Energy City Interactive Science Learning Kit! This amazing toy allows children to build their own 3D city using renewable energy sources, making it both fun and educational. With 100 percent battery-free operation, this kit promotes sustainable living and teaches children about the importance of conserving energy. With four multi-construction projects, your child will have endless hours of creative and engaging play while learning about green energy. Give your child the gift of a brighter and greener future with the Greenex Eco-Energy City Interactive Science Learning Kit.