Little Treasures Solar Powered Bulldozer Teaches Science of Energy! An education about solar and alternative energy is valuable for any child. Assembling the bulldozer from safe parts with age appropriate instructions helps a child learn coordination and following directions. Designed for children who are aged eight years or older. Use the Little Treasures Solar Powered Bulldozer even on dreary days with a halogen lamp! Safe and made of materials that will last as children play with the toy for years to come.