The Lifefactory BPA-Free Stage 1 Silicone Nipples are designed for infants aged 0-3 months. This 2-pack includes vented silicone nipples that provide a slow flow, making them ideal for newborns. Crafted from high-quality silicone, these nipples are BPA-free and tested to meet FDA standards. They are dishwasher safe, ensuring easy cleaning, and are compatible with Lifefactory's 4 oz and 9 oz glass baby bottles. Made in France, these nipples are durable and designed to support a comfortable feeding experience for your baby.