## Common ground
Finger stalls are protective coverings worn on fingers, typically to prevent injury or improve grip.
## Options at a glance
**3924.90 – Made of plastic material**
- **Defining trait:** Constructed from rigid or semi-rigid plastic, often for durability and reusability.
- **Typical examples:** Plastic finger guards used in manufacturing, DIY tools, or gardening.
- **Best fit when:** The product is hard, reusable, and designed to withstand repeated use.
**4014.90 – Made of rubber**
- **Defining trait:** Flexible, elastic material that conforms to the finger shape, often for grip or shock absorption.
- **Typical examples:** Rubber finger sleeves used in sports, handling slippery objects, or medical applications.
- **Best fit when:** The product is soft, stretchy, and prioritizes comfort or tactile sensitivity.
## Key differences
| Feature | 3924.90 (Plastic) | 4014.90 (Rubber) |
|------------------|--------------------------|---------------------------|
| Material feel | Rigid or firm | Flexible and elastic |
| Reusability | High | Moderate to high |
| Grip & sensitivity | Reduced | Enhanced |
## How to choose
- Is the material hard or stiff? → 3924.90
- Does it stretch or conform to your finger? → 4014.90
## Overlaps & pitfalls
A product might be made of rubber but have a rigid plastic core (e.g., reinforced grip), making classification ambiguous. If the primary function is protection with firm structure, go with 3924.90; if flexibility and grip are key, choose 4014.90. No option is inherently prioritized—use the main functional trait