1. Introduction
This manual provides detailed instructions for the assembly, display, and care of your Mould King 21004 Eclipse-Class Imperial Star Destroyer Model Building Toy. This large-scale building kit is designed for enthusiasts who appreciate intricate detail and a challenging construction experience.
The completed model measures approximately 116 cm (45.6 in) in length, 72.5 cm (28.5 in) in width, and 46 cm (18.1 in) in height, consisting of over 10,368 building pieces. It is intended as a display piece, offering a highly detailed replica of the Eclipse-Class Imperial Star Destroyer.

An artistic rendering of the Eclipse-Class Imperial Star Destroyer model against a cosmic background, emphasizing its impressive scale and design.
2. Safety Warnings
- Choking Hazard: This product contains numerous small parts. It is not suitable for children under 3 years of age due to potential choking hazards. Please refer to the product packaging for the manufacturer's recommended age, as the listed age of 0-3 years is incorrect for a complex building set of this nature.
- Adult Supervision: Adult supervision is recommended during assembly, especially for younger builders, to ensure proper handling of small components.
- Sharp Edges: While pieces are generally smooth, exercise caution during assembly to avoid any potential minor scrapes.
- Secure Assembly: Ensure all pieces are securely connected to prevent accidental detachment and potential hazards.
3. Parts List
Your Mould King 21004 Eclipse-Class Imperial Star Destroyer model includes:
- Over 10,368 individual building bricks.
- A full-color instruction manual.
- Building bricks organized into separate bags according to assembly order.
- Two base support brackets for display.
- One mini spacecraft accessory.
Before beginning assembly, carefully unpack all components and verify that all parts are present according to the included parts list in your instruction manual. If any parts are missing or damaged, please contact customer support.

This image displays the complete Mould King 21004 Eclipse-Class Imperial Star Destroyer model alongside its product packaging. The model is a large-scale replica, showcasing its intricate design and significant size.
4. Setup and Preparation
- Clear Workspace: Choose a large, clean, and well-lit area for assembly. The model's size requires ample space.
- Organize Parts: The building bricks are pre-sorted into numbered bags. Open bags only as instructed in the manual to avoid mixing parts.
- Review Instructions: Familiarize yourself with the full-color instruction manual before starting. Pay attention to the sequence of steps and specific piece placements.
- Tools (Optional): While not strictly required, a brick separator (not included) can be helpful for disassembling incorrectly placed bricks. Some builders may opt for a small amount of plastic-specific glue for enhanced stability in certain sections, as noted in user experiences.
5. Assembly Instructions
Follow the included full-color instruction manual step-by-step. The manual is designed to guide you through the complex assembly process. Here are general guidelines:
- Sequential Building: Assemble the model by following the numbered steps and corresponding bags of bricks. Do not skip steps or open all bags at once.
- Piece Identification: Carefully identify each piece before attaching it. The manual provides visual cues for piece types and quantities.
- Secure Connections: Ensure each brick is firmly pressed into place to create a stable structure. Loose connections can lead to instability later in the build.
- Structural Integrity: The model is large and detailed. Some sections, particularly the underside panels and engine assemblies, may benefit from careful handling during construction.
- Base Support: The two included base support brackets are crucial for the model's stability once completed. Assemble these according to the manual and ensure they are securely attached to the main structure.

A detailed side profile of the assembled Eclipse-Class Imperial Star Destroyer model, highlighting its elongated shape and surface detailing.

This image provides a rear perspective of the model, focusing on the intricate design of its multiple reactor-powered engines.
6. Display and Features
Once assembled, your Eclipse-Class Imperial Star Destroyer model is designed for display. Its features include:
- Detailed Exterior: The model features a black covered hull, intricate surface textures, and laser cannon emplacements, accurately replicating the ship's appearance.
- Reactor-Powered Engines: The rear section showcases detailed engine assemblies.
- Interior Details: Certain sections of the model may reveal interior details such as a command bridge, crew quarters, weapons racks, and cargo bays.
- Display Stand: The two included base support brackets provide stability for displaying the model.

A close-up image showcasing the interior details of the model's command bridge, including control panels and seating arrangements.

This composite image highlights various interior sections of the model, including crew bunks, a weapons storage rack, and cargo bay areas, demonstrating the detailed internal design.
7. Care and Maintenance
- Cleaning: To clean the model, gently dust it with a soft brush or a microfiber cloth. Avoid using harsh chemicals or abrasive materials, which can damage the plastic.
- Handling: Handle the model with care, especially when moving it. Support the main structure from underneath to prevent stress on individual components.
- Storage: If disassembling for storage, keep all pieces organized to facilitate future reassembly. Store in a cool, dry place away from direct sunlight to prevent material degradation or discoloration.
- Display Environment: Display the model on a stable, flat surface away from high traffic areas where it might be accidentally knocked over.
8. Troubleshooting
- Model Instability: If sections of the model feel fragile or prone to detachment, re-examine the connections. Ensure all bricks are fully pressed together. For display models, some builders have found that applying a small amount of plastic-specific adhesive to critical connection points can enhance long-term stability.
- Missing or Damaged Parts: If you discover missing or damaged parts during assembly, refer to the contact information provided by the retailer or manufacturer for assistance.
- Difficulty with Instructions: If the instruction manual is difficult to interpret, review the images carefully and consider online communities or forums for visual aids or tips from other builders.
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | 21004 (WX21004-GMUS) |
| Brand | Mould King |
| Piece Count | 10368+ pieces |
| Assembled Dimensions (L x W x H) | 116 cm x 72.5 cm x 46 cm (45.6 in x 28.5 in x 18.1 in) |
| Item Weight | Approximately 40 pounds |
| Recommended Age | Refer to product packaging for accurate age recommendation. |

A diagram illustrating the length, width, and height of the assembled model, providing precise measurements for display planning.
10. Warranty and Support
For warranty information, product support, or to report missing/damaged parts, please refer to the contact details provided with your purchase or on the official Mould King website. Keep your proof of purchase for any warranty claims.
If you purchased this product through an online retailer, you may also contact the seller directly for assistance.





