Robotime 3D DIY Wooden Puzzle Mechanical Gear Drive Marble Parkour Run Set LG501

【ENGINEERING MARVEL】Full of elaborate mechanisms and small tricks. The precise gear design provides a smooth transmission speed ratio. Each gimmick will create dozens of fun to watch. You can also learn the fundamentals of engineering and the 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 for 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. Nontoxic materials ensure you a safe building experience.