🍼 Sip, Soothe, and Smile! Dishwasher safe for effortless maintenance 100% BPA-free silicone for worry-free feeding Anti-colic valve reduces discomfort for your baby No-drip nipple keeps messes at bay Natural Response design for a seamless transition Flow 4 for optimal pace No-drip design Anti-colic valve The AVENT Philips Natural Response Baby Bottle Nipples Flow 4 are designed for babies 3 months and older, featuring a no-drip design and an anti-colic valve to ensure a comfortable feeding experience. Made from 100% BPA-free silicone, these nipples mimic the natural breastfeeding experience, making them perfect for transitioning between bottle and breast. Dishwasher safe and easy to clean, they offer convenience for busy parents.