The Lansinoh Bottle Nipples XS Flow come in a pack of 4, designed for newborns from 0 months. These BPA-free natural extra slow nipples are made of silicone and are anti-colic, providing a gentle and comfortable feeding experience for your baby. Manufactured in Türkiye, these nipples are perfect for bottle feeding babies with sensitive stomachs and a slow flow rate to prevent overeating. Lansinoh is a trusted brand that understands the unique needs of breastfeeding mothers and their babies.