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All the materials needed to build your own crafts are in the package, and no additional tools or glue are required.
Detailed step-by-step instructions. Everything in the kit is clearly marked and labeled.
It’s a decent gift for parents & friends. The recipient can not only enjoy the fun of assemble the puzzle, but also use it as home decoration or play in the office.
Turn the hand crank and the gear will start to drive the model. Put on the iron balls, the gear will take balls to the track.
The stair lift will carry the iron ball to the top.
Lubrication with wax blocks will make the mechanical movement smoother.
The flip-flop switch will take the balls into different track.
The iron balls will enter different orbits and finally return to the same starting point.