1. Introduction
This manual provides detailed instructions for assembling your JEKCA Golden Retriever 02S-M03 building block model. Please read all instructions carefully before beginning assembly to ensure a smooth and enjoyable building experience. This product is designed for individuals aged 14 years or above.

Image 1.1: Fully assembled JEKCA Golden Retriever 02S-M03 model.
2. Safety Information
- Small Parts Warning: This product contains small parts and is not suitable for children under 14 years of age due to choking hazards.
- Keep all components away from infants and young children.
- Do not ingest any parts.
- Use the pin driver tool carefully as instructed to avoid injury.
3. Package Contents
Verify that all the following components are included in your package:
- Instruction Manual
- Building Bricks (over 1030 pieces)
- Pins
- Pin Driver Tool
- Quick Guide

Image 3.1: Example of JEKCA building bricks.
4. Assembly Instructions
The JEKCA building system utilizes a patented interlocking brick-through technology, ensuring a sturdy and durable model without the need for glue. Follow the steps below for proper assembly.
4.1 Understanding the Interlocking System
Each brick is designed to interlock with others using small pins. These pins pass through the bricks, securing them together. The included pin driver tool assists in inserting and removing these pins.

Image 4.1: Illustration of the interlocking brick-through technology.
4.2 Step-by-Step Assembly
Refer to the detailed instruction manual included in your package for specific brick placement. The general assembly process involves:
- Step 1: Align Bricks. Place two bricks together, ensuring their holes align.
- Step 2: Insert Pins. Insert the provided pins through the aligned holes of the bricks.
- Step 3: Secure with Pin Driver. Use the pin driver tool to push the pins firmly into place, securing the bricks. Rotate the pin driver 90 degrees if needed to fully seat the pin.

Image 4.2: Visual guide for the three-step assembly process.
Continue this process, following the sequence provided in your instruction manual, until the model is complete.
5. Display and Handling
Once assembled, your JEKCA Golden Retriever model is sturdy and designed for display. To maintain its condition:
- Place the model on a stable, flat surface to prevent accidental falls.
- Avoid exposing the model to direct sunlight for prolonged periods to prevent potential color fading.
- Handle the model by its base or sturdy sections to avoid putting stress on individual brick connections.
6. Maintenance
To keep your JEKCA model clean:
- Gently dust the model with a soft, dry cloth or a soft brush.
- For more stubborn dirt, lightly dampen a cloth with water and wipe the surface. Avoid using harsh chemicals or abrasive cleaners.
- Ensure the model is completely dry before returning it to display.
7. Troubleshooting
7.1 Missing or Damaged Pieces
If you find any missing or damaged bricks or pins upon opening the package, please contact JEKCA customer support immediately with your purchase details.
7.2 Difficulty Interlocking Bricks
- Ensure the bricks are correctly aligned before inserting pins.
- Use the pin driver tool to apply sufficient, even pressure when inserting pins. Do not force pins with excessive strength.
- If a pin is bent or damaged, replace it with a new one.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | JEKCA |
| Model Name | Golden Retriever 02S-M03 |
| Model Number | ST19GR02-M03 |
| Material Type | Plastic |
| Number of Pieces | Over 1030 |
| Assembled Dimensions | 32.5 x 20.4 x 8.1 cm (Length x Height x Width) / 12.8 x 8.03 x 3.19 inches |
| Color | Light Brown |
| Recommended Age | 14 years and above |
| Assembly Required | Yes |

Image 8.1: Model ST19GR02-M03 with approximate dimensions.
9. Warranty Information
JEKCA products are manufactured to high-quality standards. For specific warranty details regarding your JEKCA Golden Retriever 02S-M03 building blocks, please refer to the warranty information provided with your purchase or visit the official JEKCA website. Typically, warranties cover manufacturing defects.
10. Support
For further assistance, questions, or to report missing/damaged parts, please contact JEKCA customer support. You can usually find contact information on the product packaging or the official JEKCA website:
- Online Support: Visit the JEKCA Store on Amazon for brand information and potential contact options.
- Manufacturer: JEKCA Limited

