Curious kids aged 10+ will love learning more about our solar system with this LEGO Technic Planet Earth and Moon in Orbit (42179) space toy set for kids. The interactive set makes it easy to understand different concepts like the orbit of the Earth and the Moon, the Earth~s gravitational pull and how the rotations affect the seasons. Cool features include a crankshaft that boys and girls can turn to create the rotations. There are also printed months and moon phases to show the progress of the Earth, Sun and Moon throughout the year. This set makes a great birthday gift for 10 years old kids who love planet toys. Perfect space room d~cor for boys and girls. Check out more space gifts (sold separately) in the LEGO Technic range. LEGO Technic building toys for kids include TRUE-to-life details that introduce young LEGO builders to engineering through imaginative play. Give your youngster an easy and intuitive building adventure with the LEGO Builder app, where they can zoom in and rotate models in 3D, save sets and track their progress. Contains 526 pieces.