Introduction
Welcome to the JEKCA Pug 01S-M04 building block set. This manual provides detailed instructions for assembling your JEKCA Pug model, ensuring a sturdy and aesthetically pleasing final product. JEKCA building blocks utilize a patented interlocking brick-through system, designed for durability and intricate detail.

Image: The fully assembled JEKCA Pug 01S-M04 model, showcasing its detailed gray block construction.
Safety Information
WARNING: Small parts are included. This product is recommended for individuals aged 14 years and above. Keep out of reach of small children to prevent choking hazards.
What's in the Box
Your JEKCA Pug 01S-M04 package should contain the following components:
- Instruction Manual
- Building Bricks (various shapes and sizes)
- Pins (for interlocking)
- Pin Driver (tool for inserting pins)
- Quick Guide
Assembly Instructions (Setup)
Follow the detailed steps in the included instruction manual to assemble your JEKCA Pug model. The JEKCA system uses a unique interlocking mechanism for a secure build.
- Identify Components: Sort your building bricks and pins according to the manual's instructions.
- Layered Construction: JEKCA models are built layer by layer. Refer to the manual for the correct placement of each brick.
- Interlocking System: For each connection point, align the bricks and insert a pin through the designated holes.
- Secure with Pin Driver: Use the provided pin driver tool to gently turn the pin 90 degrees after insertion. This locks the bricks together, creating a strong bond.
- Verify Connections: Ensure all pins are securely turned and bricks are tightly interlocked before proceeding to the next step.

Image: Illustration of the JEKCA interlocking mechanism. Step 1 shows inserting a pin into aligned blocks. Step 2 shows turning the pin 90 degrees with a driver to secure the connection.

Image: A circular diagram illustrating the three key steps for interlocking JEKCA blocks: aligning the blocks, inserting the pins, and rotating the pins 90 degrees for a secure fit.

Image: Cross-section view demonstrating the patented interlocking brick-through system, highlighting how pins secure multiple layers of blocks together for enhanced stability.
Operating the Interlocking System
The JEKCA interlocking system is designed for creating robust and stable models. Once a pin is inserted and turned 90 degrees, it creates a strong connection that prevents accidental disassembly. This system allows for the creation of complex and durable structures.
To disassemble a section, use the pin driver to turn the pin back 90 degrees to its original position, then carefully remove the pin and separate the blocks. Avoid forcing blocks apart without disengaging the pins, as this may damage the bricks or pins.
Maintenance
- Cleaning: To clean your JEKCA model, gently wipe it with a soft, dry cloth. For stubborn dust, a slightly damp cloth can be used, followed by immediate drying. Avoid harsh chemicals or abrasive cleaners.
- Storage: Store your assembled model or unbuilt blocks in a cool, dry place away from direct sunlight to prevent material degradation or discoloration.
- Handling: While JEKCA models are sturdy, avoid dropping or applying excessive force to prevent damage to the interlocking pins or bricks.
Troubleshooting
- Difficulty Interlocking Blocks: Ensure the pins are correctly aligned with the holes in both blocks before attempting to turn them. Do not force the pin. If a pin is bent, replace it with a new one.
- Loose Connections: Verify that each pin has been turned a full 90 degrees using the pin driver. A partially turned pin will not create a secure connection.
- Missing Pieces: Carefully check all packaging and sorting trays. If pieces are genuinely missing, contact JEKCA customer support with your model number and a description of the missing parts.
- Instructions Seem Unclear: Review the quick guide and the main instruction manual carefully. Pay close attention to the diagrams. If you are still having difficulty, online resources or community forums may offer additional visual aids.
Specifications
| Product Name | JEKCA Pug 01S-M04 Dog Plastic Building Blocks |
| Model Number | 01S-M04 (Item Model Number: ST19PT09-M04) |
| Brand | JEKCA |
| Recommended Age | 14 years and up |
| Number of Pieces | >1090 pieces |
| Product Dimensions (Assembled) | 9.84 x 3.7 x 8.39 inches (25.0 x 9.4 x 21.3 cm) |
| Item Weight | 1.93 pounds |
| Material | Plastic |

Image: Side view of the JEKCA Pug model, indicating its assembled dimensions: Length 25.0cm, Width 9.4cm, Height 21.3cm.
Warranty and Support
For warranty information, missing parts, or technical support, please refer to the contact details provided in your product packaging or visit the official JEKCA website. Keep your purchase receipt and model number handy for any inquiries.
You can also visit the JEKCA Store on Amazon for more information and products.

