The ROKR Marble Run Link Pack collection is a specialized line of wooden puzzle kits designed to expand and connect two of ROKR's largest and most popular marble run models: Marble Night City and Marble Spaceport. It's not a standalone product but rather an accessory that transforms two separate kits into a single, cohesive, and much larger kinetic sculpture.

1. The Primary Function: Merging Worlds The main purpose of the Link Pack is to provide the necessary components to physically and functionally connect the Marble Night City (LGA01) and Marble Spaceport (LGC01) kits. When these two models are completed, they can stand alone, but they are also designed with connection points. The Link Pack leverages these points to create a continuous track where marbles can travel from one model to the other and back again, creating an "infinite cycle."

2. Key Components and Design: The Link Pack is essentially a small wooden puzzle kit itself, but with a specific purpose. It includes:

• A central base: This piece serves as the foundation for the connection, providing stability and a new pathway for the marbles.
• Gears and drive belts: The pack contains gears and rubber belts that synchronize the two marble runs' lifting mechanisms. This is crucial for ensuring the marbles are transported smoothly between the two models.
• Connecting tracks and funnels: New track pieces and funnels are built with the pack to bridge the gap between the two main kits.
• LED lighting: The Link Pack often includes LED lights that integrate with the existing lighting systems of the Night City and Spaceport kits, creating a visually stunning, unified display. The lights may have different modes for a more dynamic effect.
• Electronic components: The pack includes wiring and a power distributor to connect the electronic systems of both kits to a single power source, allowing the entire combined model to be operated with one switch.

3. The Assembly Experience: The Link Pack is designed to be built after the two main marble runs are already assembled. The instructions guide the user on how to deconstruct certain parts of the original models (like the back legs or the hand-crank) to make room for the link mechanism. The building process requires precision to ensure the gears and tracks align perfectly for smooth operation.

4. The Final Result: A Grand Scale Display Once the Link Pack is successfully installed, the two separate marble runs become a single, impressive machine. The combined model is much larger in size, has a more complex track, and offers a more spectacular visual and mechanical experience. It represents the pinnacle of ROKR's modular design philosophy, encouraging enthusiasts to build on their collections and create something truly unique and grand.