## Common ground
All options describe different types of shelf labels based on material or function.
## Options at a glance
**3919,3920,3921,3926.90 – Made of plastic material**
- **Defining trait:** Constructed from synthetic polymer materials, often lightweight and moldable.
- **Typical examples:** Plastic name tags, adhesive price stickers, molded shelf markers.
- **Best fit when:** The label is made from plastic, including PVC, polypropylene, or polystyrene.
**4421.99 – Made of wood**
- **Defining trait:** Crafted from natural wood, often hand-carved or cut into shape.
- **Typical examples:** Wooden price tags, rustic shelf signs, carved product identifiers.
- **Best fit when:** The label is made from solid or veneered wood.
**6914.10 – Made of porcelain or china**
- **Defining trait:** Fired ceramic with a glossy, durable surface; often decorative.
- **Typical examples:** Porcelain name plaques, fine art labels, high-end product tags.
- **Best fit when:** The label is glazed, hard, and made from fired clay (porcelain).
**6914.90 – Made of ceramic**
- **Defining trait:** Made from fired clay, but not necessarily glossy or porcelain-grade.
- **Typical examples:** Earthenware shelf markers, rustic ceramic tags, handmade labels.
- **Best fit when:** The label is ceramic but not porcelain (e.g., matte finish, less dense).
**7020.00 – Made of glass**
- **Defining trait:** Transparent or translucent, often etched or printed on.
- **Typical examples:** Glass price tags, engraved display labels, clear shelf markers.
- **Best fit when:** The label is made from glass, including tempered or frosted types.
**8310.00 – Made of base metal**
- **Defining trait:** Constructed from iron, steel, aluminum, or other non-precious metals.
- **Typical examples:** Metal name plates, brushed steel tags, industrial shelf labels.
- **Best fit when:** The label is metallic and not made of precious metals.
**8531.20 – Digital**
- **Defining trait:** Uses electronic display (e.g., e-ink, LED) to show dynamic information.
- **Typical examples:** Electronic price tags, digital shelf labels in retail chains.
- **Best fit when:** The label updates content electronically, often wirelessly.
**9405.6X – Illuminated**
- **Defining trait:** Contains built-in lighting (LED or backlight) to enhance visibility.
- **Typical examples:** Backlit shelf signs, glowing product labels, illuminated price tags.
- **Best fit when:** The label emits light, either continuously or on demand.
## Key differences
| Option | Material | Display Type | Power Source | Durability |
|-------|----------|--------------|--------------|------------|
| 3919–3926.90 | Plastic | Static | None | Medium |
| 4421.99 | Wood | Static | None | Low-Medium |
| 6914.10 | Porcelain | Static | None | High |
| 6914.90 | Ceramic | Static | None | Medium-High |
| 7020.00 | Glass | Static | None | High |
| 8310.00 | Base metal | Static | None | Very high |
| 8531.20 | N/A | Digital | Battery/Electric | Medium |
| 9405.6X | N/A | Illuminated | Electric | Medium-High |
## How to choose
- Is the label made of plastic? → 3919,3920,3921,3926.90
- Is it made of wood? → 4421.99
- Is it porcelain or china? → 6914.10
- Is it ceramic (not porcelain)? → 6914.90
- Is it glass? → 7020.00
- Is it metal (non-precious)? → 8310.00
- Does it show changing text electronically? → 8531.20
- Is it lit up or glowing? → 9405.6X
## Overlaps & pitfalls
A label can be both digital and illuminated (e.g., a backlit e-ink tag), so prioritize the **main function**: if it updates content electronically, choose 8531.20; if it’s lit but static, choose 9405.6X. If unsure, use the most defining trait: material or dynamic display