<p>Dr. Brown?s� Silicone Nipple, together with the Anti-Colic internal vent system, is clinically proven to reduce colic. The nipple and bottle provide a more comfortable feeding experience for baby by decreasing spit-up, burping and gas.<br><br>This vacuum-free feeding is closest to breastfeeding and Dr. Brown?s� Silicone Nipples provide a consistent flow so baby can feed at their own pace. The breast-like nipple shape encourages a proper latch for a more natural bottle feeding experience and eases the transition from breast to bottle and back again. Dr. Brown?s� Silicone Nipple, with the Anti-Colic vent system, is proven to help preserve bottle milk nutrients and aid in digestion for a better night?s sleep.<br><br>? Super-soft 100% silicone nipple fits all Dr. Brown?s� Options+? wide-neck bottles<br>? Each nipple level provides clinical consistency within the flow rate, so baby?s feeding experience is constant and comfortable<br>? 6 different nipple flow levels, from 0m+ ? to 9m+ ? to thicker liquids. Baby?s preferred flow rate may vary from the suggested age range<br>? Safe for use in dishwasher (top rack only), electric and microwave sterilizers or boiling water<br>? BPA Free</p> <p>Room Temperature</p> <p>USA</p>