Rotating Earth Globe model.

Detailed construction manual included containing step-by-step illustrated instructions. Everything in the kit is clearly marked and labeled so that it can be assembled easily. Some parts are intricate and fragile, so great care must be taken assembling the model.

Made from natural wood, laser cut with smooth edges. A small sanding board is included to smooth burs and sharp edges, and to ease very tight fits. No glue is required nor provided, but judicious application of a few drops of glue on some exposed parts will secure them.

The combination of mechanical and lever principle can stimulate the collision between steel ball and track, which can exercise and develop hands-on practical ability. The gear is decorated with carved elements, smooth retro wood handles, and the S-shaped track connects with the cyclotron accelerator track. 

It is not designed for repeated disassembly - it is a model to be assembled for display and exploring. 

83 pieces, 2/5 difficulty level.