## Common ground
All options are types of bollards classified by their primary material.
## Options at a glance
**3926.90 – Plastic**
- **Defining trait:** Made primarily from synthetic plastic materials, often lightweight and flexible.
- **Typical examples:** Flexible traffic bollards, temporary crowd control posts.
- **Best fit when:** Used for temporary barriers, low-impact zones, or where impact absorption is key.
**6802.2X,6802.9X – Stone**
- **Defining trait:** Crafted from natural monumental or building stone (e.g., granite, marble), typically heavy and permanent.
- **Typical examples:** Decorative entrance bollards in historic sites, ornamental urban design.
- **Best fit when:** Aesthetic integration with architecture or heritage settings is required.
**6810.99 – Concrete/Artificial stone**
- **Defining trait:** Made from cement-based materials, offering high durability and impact resistance.
- **Typical examples:** Permanent traffic control bollards, crash-rated barriers.
- **Best fit when:** High-security or long-term use in urban or industrial areas.
**7325,7326 – Iron/Steel**
- **Defining trait:** Constructed from ferrous metals, providing strength and robustness; often galvanized or painted.
- **Typical examples:** Security bollards at government buildings, vehicle barrier systems.
- **Best fit when:** Maximum protection against vehicle impact or heavy-duty use.
## Key differences
| Feature | Plastic | Stone | Concrete | Steel |
|------------------|---------------|---------------|---------------|---------------|
| Material density | Low | Very high | High | Very high |
| Durability | Moderate | High (but brittle) | Very high | Very high |
| Primary use | Temporary | Aesthetic | Permanent | Security |
| Impact resistance| Low–medium | Low | High | Very high |
## How to choose
- Is the bollard made of plastic? → 3926.90
- Is it made from natural stone (e.g., granite, marble)? → 6802.2X,6802.9X
- Is it concrete or artificial stone? → 6810.99
- Is it made of iron or steel? → 7325,7326
## Overlaps & pitfalls
A bollard could be made of steel with a concrete core (e.g., hybrid), but the primary material determines classification. If unclear, prioritize the dominant structural material. No option is vague—each clearly defines a distinct material group