## Common ground
Both options refer to teats or pacifiers, which are nipple-shaped items used by infants for sucking.
## Options at a glance
**3926.90 – Plastic material**
- **Defining trait:** Made primarily from synthetic plastic polymers (e.g., polypropylene, PVC).
- **Typical examples:** Hard, durable pacifiers with a rigid shield; common in modern disposable or reusable designs.
- **Best fit when:** The product is lightweight, non-flexible, and has a smooth, molded surface typical of plastic.
**4014.90 – Rubber**
- **Defining trait:** Made from natural or synthetic rubber, offering softness and elasticity.
- **Typical examples:** Classic soft nipple pacifiers with a flexible, squishy feel; often used in traditional or organic baby products.
- **Best fit when:** The product feels soft, stretchable, and has a rubbery texture, especially if it’s not fully rigid.
## Key differences
| Feature | 3926.90 (Plastic) | 4014.90 (Rubber) |
|------------------|--------------------------|----------------------------|
| Material feel | Hard, rigid | Soft, flexible |
| Flexibility | Low | High |
| Common use | Durable, reusable models | Traditional, organic types |
## How to choose
- Is the teat hard and molded, not easily squished? → 3926.90
- Does it feel soft and stretchy like rubber? → 4014.90
## Overlaps & pitfalls
A product may combine plastic and rubber (e.g., a rubber nipple on a plastic shield), but the **main functional part** (the sucking surface) determines the classification. If the nipple is rubber, use 4014.90; if it’s plastic, use 3926.90. Do not assume based on overall appearance—focus on material of the teat itself