【ENGINEERING MARVEL】Full of elaborate mechanisms and small tricks. The precise gear design provides smooth transmission speed ratio. Each gimmick will create dozens of fun to watch. You can also learn the fundamentals of engineering and structures of machines.

• a stair stepper as an elevator
• a spiral funnel,2 straight rails, 3 curve rails
• a wheel lifter to bring marbles to the top
• a flip-flop as a switch to drive marbles to 2 paths
• a hand crank to run the whole system to move

【REWARDING CHALLENGE】Highly satisfying and educational building experience. A brilliant way to enhance understanding of STEM principles and improve kids’ motor skills. This building set will put your visual-spatial skill and patience to the test.
【IDEAL GIFT& HOWE DECOR】Perfect gift at any occasion for all ages. Detailed design and attractive appearance make it a unique touch to your home and office.
【NON GLUE& NATURAL MATERIAL】Lightweight models made of natural plywood. Pre laser-cut wood sheets with well-fit parts. No glue needed, easy to assemble together. Non-toxic materials ensure you a safe building experience.
ADDITIONAL INFORMATION
WEIGHT: 1 kg
KITMetal: Ball, Plywood
RECOMMENDED: AGE14+
ASSEMBLED SIZE: 254*232*165mm
PACKAGE SIZE: 317*233*46mm
WOOD PIECES:233 pcs