1. Introduction
This manual provides detailed instructions for assembling your KAWADA nanoblock Sanrio Kuromi (Ninja) Character Collection Series Building Kit. The finished model stands approximately 2.48 inches (6.3 cm) tall and consists of 160 pieces. This kit is part of the Character Collection Series, designed for enthusiasts of micro-sized building blocks.

Image 1.1: The completed nanoblock Kuromi (Ninja) figure, showcasing its detailed design and compact size.

Image 1.2: A collection of Sanrio nanoblock characters, including Kuromi, demonstrating the series' aesthetic.
2. Safety Information
WARNING: CHOKING HAZARD - This product contains small parts and is not suitable for children under 3 years of age. Adult supervision is recommended during assembly, especially for younger users.
- Keep all packaging materials away from children to prevent suffocation.
- Do not put nanoblock pieces in your mouth.
- Dispose of any broken or damaged pieces safely.
3. Package Contents
Verify that all components are present before beginning assembly:
- nanoblock pieces for Sanrio - Kuromi (Ninja) Character Collection Series (approximately 160 pieces).
- Detailed instruction sheet with diagrams.
If any parts are missing or damaged, please refer to the "Warranty and Support" section for assistance.
4. Assembly Instructions
The Kuromi (Ninja) kit has a difficulty level of 2, indicating a moderate challenge suitable for ages 8 and up. Follow the included step-by-step diagrams carefully.
General Assembly Tips:
- Organize Pieces: Before starting, sort the nanoblock pieces by color and size. This will simplify the building process.
- Follow Diagrams: Each step in the instruction sheet provides a visual guide. Pay close attention to the orientation and placement of each block.
- Use a Flat Surface: Assemble the model on a clean, flat, and stable surface to prevent pieces from scattering or the model from collapsing during construction.
- Gentle Pressure: nanoblocks fit snugly. Apply gentle, even pressure to connect pieces. Avoid excessive force, which can damage the blocks.
- Check Connections: Ensure each block is fully seated and securely connected to the adjacent blocks. Loose connections can lead to instability.

Image 4.1: A nanoblock figure held in a hand, illustrating the miniature size of the blocks and the completed model.

Image 4.2: An illustration of nanoblock difficulty levels, with Kuromi (Ninja) being a Level 2 build.
5. Care and Maintenance
To ensure the longevity and appearance of your nanoblock Kuromi (Ninja) model:
- Cleaning: Use a soft, dry cloth or a small, soft brush to gently remove dust. For more stubborn dirt, a slightly damp cloth can be used, but avoid excessive moisture.
- Storage: Store the assembled model in a cool, dry place away from direct sunlight to prevent discoloration or material degradation.
- Handling: Handle the model with care to avoid accidental disassembly, especially when moving or displaying it.
6. Troubleshooting
If you encounter issues during assembly or with your nanoblock kit:
- Missing Pieces: Double-check the packaging and your work area. Due to their small size, pieces can be easily overlooked. If a piece is genuinely missing, contact customer support.
- Difficulty Connecting Blocks: Ensure the blocks are correctly aligned. If a block does not fit, verify it is the correct piece for that step according to the instructions.
- Model Instability: Review previous steps to confirm all connections are secure and blocks are placed in the correct orientation.
7. Product Specifications
| Product Name | nanoblock Sanrio Kuromi (Ninja) Character Collection Series Building Kit |
| Model Number | NAN22911 |
| Brand | KAWADA |
| Number of Pieces | 160 |
| Difficulty Level | 2 |
| Approximate Dimensions (Assembled) | 2.2 x 1.22 x 2.48 inches (5.6 x 3.1 x 6.3 cm) |
| Item Weight | 1.09 ounces (30.9 grams) |
| Recommended Age | 8 years and up |
| ASIN | B0DJM6LXVP |
8. Warranty and Support
This product is manufactured by Kawada. For any inquiries regarding missing parts, defects, or general product support, please contact the manufacturer directly. Information regarding specific warranty terms may be found on the product packaging or the official Kawada website.
The product box includes a Bandai Namco warning label, which serves as proof of an officially licensed Kawada product.