Introduction
Welcome to the exciting world of the NATIONAL GEOGRAPHIC Glowing Marble Run! This 250-piece construction set is designed to provide hours of engaging play while fostering STEM skills. Featuring sturdy, tight-fit pieces and 50 glow-in-the-dark glass marbles, you can build countless imaginative configurations. This manual will guide you through the setup, operation, and maintenance of your marble run.

Image: The complete NATIONAL GEOGRAPHIC Glowing Marble Run set, showcasing its vibrant colors and intricate design.
What's in the Box
Your NATIONAL GEOGRAPHIC Glowing Marble Run set includes the following components:
- 250 Piece Glowing Marble Run with Smooth-Run Tube Pieces
- Glow-in-the-Dark Marbles (50 count)
- Storage Bag
- Marble Pouch
- Learning Guide

Image: A visual representation of the various construction pieces included in the marble run set.
Setup Instructions
Follow these steps to assemble your Glowing Marble Run:
- Unpack Components: Carefully remove all 250 pieces, marbles, storage bag, and learning guide from the box.
- Review Learning Guide: Consult the included Learning Guide for initial design ideas and construction experiments. This guide also teaches about the physics of motion and aerodynamics.
- Connect Base Pieces: Begin by connecting the sturdy base pieces to form a stable foundation for your marble run.
- Build Vertical Structures: Attach the smooth-run tube pieces and action pieces vertically, ensuring a tight fit for stability. The pieces are designed to fit snugly to prevent the maze from falling apart during play.
- Integrate Action Pieces: Incorporate the 55 action pieces (e.g., spinners, funnels, ramps) into your design to create dynamic marble paths.
- Test Your Design: Before adding all marbles, test your track with one or two marbles to ensure smooth flow and identify any areas needing adjustment.

Image: Two children actively building and connecting pieces of the marble run, demonstrating the hands-on assembly process.
Operating Instructions
Once your marble run is assembled, follow these steps to enjoy the glowing marble experience:
- Charge Glow Marbles: Expose the 50 glow-in-the-dark glass marbles to a light source (sunlight or artificial light) for a few minutes to activate their glow.
- Release Marbles: Place one or more charged marbles at the starting point of your marble run.
- Observe the Glow: For the best glowing effect, dim the lights in the room and watch as the marbles zig-zag down your custom tracks, illuminating their path.
- Experiment: Continuously reconfigure your marble run to create new and exciting paths. Challenge yourself to build the fastest or most complex track.

Image: Close-up of the vibrant glow-in-the-dark glass marbles, highlighting their luminous quality.
Maintenance
To ensure the longevity and optimal performance of your marble run:
- Cleaning: Wipe down the plastic pieces with a soft, damp cloth as needed. Avoid harsh chemicals.
- Storage: Use the provided storage bag and marble pouch to keep all components organized and prevent loss. Store the set in a cool, dry place away from direct sunlight when not in use.
- Marble Care: Handle glass marbles with care to prevent breakage.

Image: The included drawstring storage bag and a smaller pouch for marbles, demonstrating convenient storage solutions.
Troubleshooting
If you encounter any issues with your marble run, consider the following:
- Marbles Getting Stuck: Check for any misaligned pieces or blockages in the track. Ensure all connections are secure and flush.
- Unstable Structure: Verify that all base pieces are firmly connected and that vertical supports are properly aligned and tightly fitted. Building on a flat, stable surface is recommended.
- Marbles Not Glowing: Ensure the glow-in-the-dark marbles have been adequately exposed to light before use. The longer the exposure, the brighter and longer they will glow.
Specifications
| Product Dimensions | 17.5 x 7.5 x 13.5 inches |
| Item Weight | 7.56 pounds |
| Item Model Number | NGMRGID250 |
| Manufacturer Recommended Age | 8 years and up |
| Batteries | 1 CR2 battery required (included) |
| Release Date | November 21, 2019 |
| Manufacturer | JMW Sales, Inc. |
Safety Information
WARNING: CHOKING HAZARD - Small Parts. Not for children under 3 years.
This product contains small parts (marbles and small construction pieces) which may pose a choking hazard. Adult supervision is recommended, especially for younger children.
Warranty and Support
Blue Marble, the brand behind NATIONAL GEOGRAPHIC products, is committed to developing products that foster education, imagination, and creativity. If you have any questions or require assistance with your Glowing Marble Run, please contact our U.S. support team for a stellar experience. Refer to the product packaging or the official Blue Marble website for contact details.