0 Months + Stainless Steel Infant Bottle with Slow Flow Nipple. Safe: the bottle and collar are crafted from Food Grade 304 stainless steel that is bpa free and will not leach into your child’s milk, juice or water. No plastic components, 100% plastic-free. Smart: includes a slow flow, vented, anti-colic nipple designed to support breast feeding. Nipples are nitrosamine free. The bottle is also compatible with nipples from, Born Free, Mam, Dr. Brown’s, and Think Baby, and fast-flow sip spouts from Avent. Functional: includes easy-read internal volume markings and a silicone travel cover. Dishwasher safe and compatible with electric bottle warmers.