## Common ground
All options describe a pillbox with a keyring, differing only in material composition.
## Options at a glance
**3923.10,3926.90 – Made of plastic material**
- **Defining trait:** Constructed primarily from plastic (e.g., polypropylene, ABS).
- **Typical examples:** Clear snap-lock pill organizer with keyring loop; lightweight, molded plastic case.
- **Best fit when:** The product is lightweight, transparent or colored plastic, and not leather-like or metallic.
**4202.3X,4202.9X – Made of leather or composite materials**
- **Defining trait:** Uses leather, composition leather, or fabric-covered surfaces (e.g., faux leather, textile).
- **Typical examples:** Leather-bound pillbox with stitched edges; fabric-wrapped case with keyring.
- **Best fit when:** The product has a soft, flexible, or textured surface resembling leather or fabric.
**7326.90 – Made of stainless steel**
- **Defining trait:** Constructed from corrosion-resistant metal, typically polished or brushed.
- **Typical examples:** Sleek, durable metal pillbox with keyring; often has a metallic sheen and solid feel.
- **Best fit when:** The product feels heavy, cold, and metallic, with visible metal seams or finish.
**7907.00 – Made of zinc**
- **Defining trait:** Made from zinc alloy (often die-cast), typically lightweight but dense for its size.
- **Typical examples:** Small, cast zinc pillbox with keyring; may have a matte or brushed finish.
- **Best fit when:** The product is metallic but lighter than steel, often used in small decorative items.
## Key differences
| Feature | Plastic | Leather/Fabric | Stainless Steel | Zinc Alloy |
|------------------|---------------|--------------------|-------------------|-------------------|
| Material feel | Light, brittle| Soft, flexible | Heavy, cold | Light, dense |
| Surface texture | Smooth, glossy| Textured, stitched | Polished, shiny | Matte, cast |
| Weight | Low | Medium | High | Medium-low |
## How to choose
1. Is the material hard and metallic? → 7326.90 or 7907.00
2. Does it feel like plastic (light, molded)? → 3923.10,3926.90
3. Does it have a leather-like or fabric surface? → 4202.3X,4202.9X
4. Is it heavy and shiny? → 7326.90
5. Is it lighter than steel but still metallic? → 7907.00
## Overlaps & pitfalls
- A plastic pillbox with a leather-like finish may fit both 3923.10,3926.90 and 4202.3X,4202.9X.
- Zinc and stainless steel can look similar; weight and density help distinguish them.
- If unsure, prioritize the **primary material** (e.g., if it’s mostly plastic, use 3923.10,3926.90).
- No option is vague—each clearly defines a distinct material group