The LEGO Technic Planet Earth and Moon in Orbit is down to u00a347.69 for Prime Members, a nice 32% off its u00a370 RRP.
For those who are not Prime Members, its a okay price of u00a354.89, 22% off RRP.
The Prime Price is its lowest price to date, though is a fairly new set so could still come down a bit, but best price around as of now.
Product Description (copied directly from Brickset)
Curious kids aged 10+ will love learning more about our solar system with this LEGOu00ae Technicu2122 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 Earthu2019s 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 gift for kids who love planet toys. 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.
Interactive model u2013 Inspire kids to build a representation of the Earth, Sun and Moon in orbit with this LEGOu00ae Technicu2122 Planet Earth and Moon in Orbit building toy for kids aged 10 and up
Educational space toy u2013 Kids can turn the crank to see how the Earth and the Moon orbit around the Sun
Includes months and moon phases u2013 This solar system toy includes printed details, like the month and moon phases to help kids see how the Earthu2019s orbit affects our seasons
A space gift for kids u2013 This set makes a fun gift for kids aged 10 and up who love planet toys and learning more about our solar system
Intuitive instructions u2013 The LEGOu00ae Builder app guides your youngster on an intuitive building adventure with tools that let them zoom in and rotate models in 3D, save sets and track their progress
Measurements u2013 526-piece set with a model measuring over 9 in. (24 cm) high, 12.5 in. (33 cm) long and 7 in. (18 cm) wide