Many Dr. Brown’s items convert a familiar bottle into a sippy or straw cup by removing the internal vent and attaching conversion pieces: a silicone sippy spout, interchangeable handles, or a weighted straw with a sliding cap for spill control.
Most listings state bottles are top-rack dishwasher-safe and compatible with common sterilizers. Glass sets often allow boiling for sterilization. Note that at least one item specifically cautions “Do Not Microwave.”
Designs include removable soft silicone handles for easier gripping, soft silicone sippy spouts that replace nipples, and weighted silicone straws with sliding caps to support tip-and-sip motion and reduce spills.
Suggested ages vary by product and include ranges such as Newborn and Up, 3 Months and Up, 6 Months and Up, and some items listed for 0–36 Months.