The COMO TOMO Slow Flow Nipples are designed for newborns aged 0-3 months, featuring a single-hole design to provide a natural, breast-like feeding experience. Made from high-quality, medical-grade silicone, these nipples are soft, flexible, and mimic the mother's breast to help babies transition easily between breast and bottle feeding. Equipped with dual anti-colic vents, they help reduce gas and discomfort. BPA-free and safe for babies.