Ugears Mini Helicopter 3D Mechanical Model Wooden Puzzle DIY Kits Model:Mini Helicopter Do not tumble dry

Do not tumble dry

The precut parts are made from high-quality and sustainable wooden material and fit together like a puzzle

the vertical position of the weight on the pendulum

is rated "Advanced" difficulty

5D picture muscle car model in its attractive natural wood state or color

Ugears Mini Helicopter 3D Mechanical Model Wooden Puzzle DIY Kits Model:Mini Helicopter Do not tumble dryIn 1489 the greatest polymath the world has ever known sketched a design for an aerial screw" or helical rotor. Da Vinci's dream of mechanical flight was not only the earliest conception of a helicopter, but gave birth to the entire field of aeronautics. The world would have to wait until the early 20th Century before the first machines capable of lifting off the ground were invented, paving the way to today's helicoptersaircraft capable of vertical