## Common ground
All options refer to cosmetic jars used for storing skincare, makeup, or personal care products.
## Options at a glance
**3923.90 – Made of plastic material**
- **Defining trait:** Constructed primarily from synthetic polymers like PET, HDPE, or PP, often lightweight and shatter-resistant.
- **Typical examples:** Plastic serum bottles, lotion jars, compact powder containers.
- **Best fit when:** Durability, low cost, or portability are priorities; common in mass-market cosmetics.
**7010.90 – Made of glass**
- **Defining trait:** Crafted from transparent or tinted glass (e.g., borosilicate or soda-lime), valued for purity and premium appearance.
- **Typical examples:** Glass face oil bottles, serum vials, high-end moisturizer jars.
- **Best fit when:** Product integrity, luxury feel, or chemical resistance (e.g., for essential oils) is key.
## Key differences
| Feature | 3923.90 (Plastic) | 7010.90 (Glass) |
|--------------------|--------------------------|--------------------------|
| Material | Synthetic plastic | Glass |
| Durability | Shatter-resistant | Fragile |
| Perceived value | Mid to low | High |
| Chemical resistance| Moderate | Excellent |
## How to choose
- Is the jar made of a hard, lightweight, non-breakable material? → 3923.90
- Does it feel heavy, transparent, and used in premium or natural skincare? → 7010.90
## Overlaps & pitfalls
A jar may use both plastic and glass components (e.g., glass body with plastic lid), but the primary material determines classification. If unclear, prioritize the main structural material. No option is vague—both are well-defined by material type