## Common ground
All options refer to shampoo bottles based on their primary material: plastic or glass.
## Options at a glance
**3923.30,3924.90 – Made of plastic material**
- **Defining trait:** Constructed primarily from synthetic polymers like PET, HDPE, or PP.
- **Typical examples:** Standard squeeze bottles, recyclable plastic shampoo containers, travel-sized bottles.
- **Best fit when:** The bottle is lightweight, flexible, shatterproof, and commonly used in mass-market personal care products.
**7013.10,7013.9X – Made of glass**
- **Defining trait:** Manufactured from transparent or colored glass, often reusable or premium-looking.
- **Typical examples:** Luxury skincare bottles, refillable shampoo jars, artisanal or eco-conscious brands.
- **Best fit when:** The product emphasizes aesthetics, sustainability, or high-end branding; typically heavier and more fragile.
## Key differences
| Feature | Plastic (3923.30,3924.90) | Glass (7013.10,7013.9X) |
|---------------------|----------------------------|--------------------------|
| Material | Synthetic polymer | Silica-based glass |
| Durability | Shatterproof | Fragile |
| Weight | Light | Heavy |
| Common use case | Everyday, mass-market | Premium, refillable |
## How to choose
- Is the bottle made of plastic (e.g., squeezable, lightweight)? → 3923.30,3924.90
- Is it made of glass (e.g., clear, heavy, often reusable)? → 7013.10,7013.9X
## Overlaps & pitfalls
A bottle could be both plastic and glass if it has a glass body with a plastic cap or pump—but the primary material determines classification. The key is the main structural material. If unclear, prioritize the dominant material by volume and function. No option is inherently better; choice depends on product design and purpose