## Common ground
Both options describe stationery cases made from different primary materials.
## Options at a glance
**4202.9X – Made of flexible materials**
- **Defining trait:** Constructed primarily from flexible, non-rigid materials like leather, plastic sheeting, textiles, or paperboard.
- **Typical examples:** Leather pencil cases, fabric pouches, plastic document sleeves.
- **Best fit when:** The case is soft, foldable, or lightweight with a pliable structure.
**4420.90 – Made of wood or wood-based materials**
- **Defining trait:** Constructed from solid wood, marquetry, or inlaid wood; typically rigid and structured.
- **Typical examples:** Wooden desk organizers, carved stationery boxes, inlaid writing trays.
- **Best fit when:** The case has a solid, durable wooden body with visible grain or craftsmanship.
## Key differences
| Feature | 4202.9X (Flexible) | 4420.90 (Wooden) |
|---------------------|--------------------------|----------------------------|
| Material rigidity | Flexible, pliable | Rigid, solid |
| Common materials | Leather, plastic, fabric | Wood, marquetry |
| Typical use | Portable, soft storage | Desk display, durable use |
## How to choose
- Is the case made of leather, fabric, or plastic and can it be folded? → 4202.9X
- Is the case made of solid wood, with visible grain or inlay? → 4420.90
## Overlaps & pitfalls
A stationery case could combine both materials (e.g., a wooden frame with fabric lining), but it should be classified by its **main structural material**. If unsure, prioritize the dominant material: flexible vs. solid wood. The term "wholly or mainly covered" in 4202.9X allows for some covering, but not structural dominance