The Gerber Nuk 2 Pack Silicone Bottle Nipples in orthodontic design with medium flow are suitable for babies from about 7 months and up. Made of silicone and manufactured in Germany by NUK, these bottle nipples provide a comfortable and natural feeding experience for your little one. This 2 pack allows you to have spares on hand for convenient use, ensuring your baby can continue to drink comfortably.