{"product_id":"b0fsrzfvv7","title":"Upgraded Motorized 3D Wooden Puzzles for Adults Marble Run Set, 236-Piece Mechanical Model Kit, STEM Building Project \u0026 Unique Gift for Men, Women, Teens, Christmas Birthday Gift","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e【Multi-Mechanism Marble Adventure】Experience an interactive mechanical journey featuring a gear-driven dual-channel splitter, diversion gates, vortex accelerators, and a 5-level raceway. Watch marbles journey through multi-level tracks and experience the well-orchestrated performance of mechanical precision and fun\u003c\/li\u003e\n\u003cli\u003e【Precision-Cut Engineering Design】Comprising 263 laser-cut wooden pieces with smooth edges and snap-fit design, this set ensures seamless assembly without glue. Each component is precision-engineered for secure connections and structural integrity, supported by clearly illustrated step-by-step instructions\u003c\/li\u003e\n\u003cli\u003e【STEM Learning Through Interactive Play】Explore principles of gear transmission, lever mechanics, and gravity-based motion through hands-on assembly and operation. This advanced puzzle enhances logical reasoning, problem-solving skills, and mechanical insight—perfect for adults and teens seeking an intellectual challenge\u003c\/li\u003e\n\u003cli\u003e【Elegant Kinetic Art】Once completed, this multi-layer marble run becomes a stunning centerpiece with its ornate retro design. Its polished wooden structure and smooth mechanical operation make it a sophisticated addition to any desk or shelf\u003c\/li\u003e\n\u003cli\u003e【Installation Precautions: Preparation \u0026amp; Handling】Please handle with extra care when detaching pieces, especially the more fragile ones, from the wooden boards to prevent breakage.For an optimal building experience, we recommend lightly sanding the edges of the pieces before assembly to remove any burrs and ensure a smoother fit\u003c\/li\u003e\n\u003cli\u003e【Installation Precautions: Assembly \u0026amp; Final Check】During assembly, always match the numbered codes on similar-looking pieces to ensure correct placement. Once fully built, please verify that all components are securely locked in place, as any misaligned part may disrupt the marble's smooth journey\u003c\/li\u003e\n\u003cli\u003e【Reliable Service】NUBAUTO aims to provide you with good service. If you have any questions or dissatisfaction during the use, please feel free to contact us, we will solve the problem for you in the first time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"NUBAUTO","offers":[{"title":"Default Title","offer_id":53613644677399,"sku":"B0FSRZFVV7","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/7009\/7175\/files\/81Zg2_vt1tL._AC_SX679.jpg?v=1783063315","url":"https:\/\/brixtakids.com\/products\/b0fsrzfvv7","provider":"Brixta","version":"1.0","type":"link"}