Nipples from the company Dr. Brown's, suitable for babies 9+ months. The product is made of silicone, an odorless, tasteless, and temperature-resistant material.

For hygiene reasons, nipples should be replaced regularly, especially when the baby has already started teething. Replace them as soon as you notice the following signs of wear:
- Milk comes out in large quantities, indicating that the hole has opened.
- When you see a change in color or cloudiness.
- The thickness or shape has changed and it has become thinner.
- It sticks, has cracks, or missing pieces.
- Finally, when the baby has grown and needs a larger size or a different shaped nipple.