## Common ground
All options describe spice racks with spice jars, differing only in material.
## Options at a glance
**3924.10 – Plastic**
- **Defining trait:** Constructed primarily from synthetic polymer materials.
- **Typical examples:** Stackable plastic racks with snap-on lids; lightweight kitchen organizers.
- **Best fit when:** The rack is light, flexible, and likely includes molded or injection-molded components.
**4419 – Wood**
- **Defining trait:** Made from natural wood or wood-based materials (e.g., plywood, MDF).
- **Typical examples:** Handcrafted wooden shelves; rustic kitchen displays with carved details.
- **Best fit when:** The rack has visible grain, natural finish, or is solid wood.
**7013.10,7013.4X – Glass**
- **Defining trait:** Features transparent or translucent glass components (jars or structure).
- **Typical examples:** Clear glass jars on a metal frame; decorative display racks with see-through containers.
- **Best fit when:** The spice jars are clearly made of glass, allowing visibility of contents.
**7323.9X – Iron or Steel**
- **Defining trait:** Constructed from ferrous metal (iron or steel), often with a metallic finish.
- **Typical examples:** Industrial-style racks; wall-mounted steel shelves with metal brackets.
- **Best fit when:** The rack has a sturdy, industrial look and feels heavy or metallic.
## Key differences
| Feature | Plastic | Wood | Glass | Iron/Steel |
|----------------|---------------|--------------|----------------|----------------|
| Material | Synthetic polymer | Natural wood | Transparent glass | Metallic |
| Weight | Light | Medium | Medium-heavy | Heavy |
| Visibility | Opaque | Opaque | Clear | Opaque/reflective |
## How to choose
- Is the rack made of plastic? → 3924.10
- Is it made of wood (natural or engineered)? → 4419
- Are the jars or main parts made of glass? → 7013.10,7013.4X
- Does it feel heavy and metallic, with iron/steel structure? → 7323.9X
## Overlaps & pitfalls
A rack may combine materials (e.g., glass jars on a metal frame), which could fit both 7013.10 and 7323.9X. In such cases, use the **dominant material** or **primary structural component** to decide. If unclear, prioritize based on the product’s main visual or functional feature