Sky Watcher 2-in-1 set

Sky Watcher Tourbillon Table Clock

Ugears DIY model Sky Watcher Tourbillon Table Clock. Assemble without glue. Clock works without batteries. The time display is placed on reels. Perfect gift idea!

Dynamometer

The Ugears Dynamometer shows basic principles of mechanics, fits for STEM-learning: the cascade of gears and the mechanical junction, known as the Geneva drive