UGears Mechanical Tellurion Wooden Mechanical Model Kit

The Ugears Mechanical Tellurion is an accurate wooden model representation of our corner of the universe. A tellurion is an ingenious mechanism that depicts the cosmic dance between Sun, Earth and Moon. The causes of day and night, the phases of the moon, and the changing seasons are seen and understood according to the movements of this 3D puzzle. 

The Ugears Mechanical Tellurion DIY model kit comes with 249 parts and is rated "Medium," with an estimated construction time of 5 hours.