{"product_id":"rokr-industrial-city-series-3d-puzzle-mechanical-diy-model-set-with-light-movement-thermo-engine-cgm03-diy-educational-stem-toy-for-adults-teens-retro-industrial-decor","title":"ROKR Industrial City Series 3D Puzzle Mechanical DIY Model Set with Light \u0026 Movement Thermo Engine（CGM03）-DIY Educational STEM Toy for Adults \u0026 Teens, Retro Industrial Decor","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e【Visible Mechanics \u0026amp; Transparent Design】 – Experience the heart of steam power with our single-cylinder engine model. The transparent piston chamber allows you to watch the connecting rod and piston move up and down in real time as the engine runs, offering a mesmerizing glimpse into the core of industrial mechanics. Perfect for engineering enthusiasts who love to see how things work.\u003c\/li\u003e\n\u003cli\u003e【Motorized Dual Pulley System \u0026amp; Interlocking Play】 – Feel the steam age come alive with a dynamic belt-driven mechanism. The front and rear pulleys rotate synchronously with the flywheel, driving the internal pistons for a fully immersive kinetic experience. Plus, it features a modular interlocking design, allowing you to connect multiple models from the same series to build an expansive mechanical diorama.\u003c\/li\u003e\n\u003cli\u003e【Immersive LED Furnace Glow \u0026amp; Premium Metallic Finish】 – The built-in LED lighting does more than just illuminate; it mimics the fiery glow of a real steam furnace, dramatically highlighting the transparent piston motion. Combined with premium metallic painting and vintage steampunk piping, this model is a showpiece that looks stunning on any desk, shelf, or office collection.\u003c\/li\u003e\n\u003cli\u003e【Rewarding DIY Assembly for Adults \u0026amp; Dads】 – Take pride in building your own mechanical masterpiece. This 3D puzzle set is designed for adult hobbyists, engineers, and DIY lovers, offering a satisfying balance of challenge and fun. It makes a thoughtful birthday, Father’s Day, or Christmas gift for the man or dad who has everything, combining the joy of model building with stunning display results.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROKR","offers":[{"title":"Default Title","offer_id":48251948990615,"sku":"B0GQ87BQYK","price":41.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/1032\/2327\/files\/41Xu1ZptNiL.jpg?v=1789079479","url":"https:\/\/tinkervanta.com\/products\/rokr-industrial-city-series-3d-puzzle-mechanical-diy-model-set-with-light-movement-thermo-engine-cgm03-diy-educational-stem-toy-for-adults-teens-retro-industrial-decor","provider":"TinkerVanta","version":"1.0","type":"link"}