3D Wooden Puzzles for Adults Lron Ball Marble Run Model Building Kit Steampunk DIY Mechanical Wooden Assembly Puzzles, DIY Desk Decoration

The model has a lot of interactive elements Parts rotate, raise, lower, and so on. To set this 3D model in motion, you have to put the metal balls in the initial position. A unique mechanism in which three tracks with sharp turns, swings, and descents are interconnected will ensure the model's movement, and you, as a spectator, will have the chance to watch this process endlessly. As many as 1102 parts are included. Each one is an indispensable part of the mechanism that makes our little planetary model move. This is a customized wooden 3D model from LENAOBEN, that will give you the ultimate engineering experience. Its details thought out to the smallest one, fascinate your mind, and the result obtained at the end delights even those who are not particularly fond of puzzles. Complexity of assembly: Difficult Assembly time:16+ hours Quantity of parts: 1102 wooden kits Materials: high-quality natural plywood; no glue required. Model size, l*w*h: 13x 13 x 7.2 inches Recommended Age: 16 years and up

• 【Build, Play, Explore】1102-Piece Marble Run Engineering Toy is a set of wooden & plastic pieces used for constructing mazes for marbles. It promotes STEM skills and provides an educational and fun activity for adults and teens to engage in.
• 【Cool Perpetual Motion Science Kits】The marble runway model is made entirely of wood and you can finish it with the tools we provide. It consists of 1000+ parts and it is a little bit difficult to complete for most players, of course, you can complete it according to our instructions, it will take some time!
• 【Double the Thrills】This engaging and challenging project offers hours of fun on its own, but the excitement doesn't end there. Sky Island to create an impressive and epic marble maze. Get ready to witness marbles racing down slopes and around corners at exhilarating speeds!
• 【It’s Worth the Time】The toy building set is featured with a brilliant design and teaches patience, problem-solving, and engineering, cultivate hand eye coordination ability. With detailed instruction book, you will know how to use each piece, building your maze is easy!
• 【After-Sale Service】If you have any questions in assembling, such as damaged or missing parts, please feel free to contact us and we will reply you within 24 hours. We are always here!