Get the cup that keeps up with your little one – the spill-proof Dr. Brown's Milestones Insulated Straw Cup with a sliding lid. Made for little hands, the Insulated Straw Cup is lightweight with handles that lock in place for easy grip. Remove the handles as toddler grows for more developed sipping. A soft silicone straw teaches sipping skills, while a sliding lid keeps the straw clean and liquid in the cup when not in use. The double-walled tumbler keeps drinks fresh while on the go. Available in a variety of colors and playful designs, all with simple assembly and disassembly. Dishwasher (top rack) and sterilizer safe. 10 oz/300 mL. BPA free. Dr. Brown's Milestones Insulated Sippy Cup with Straw and Handles, Spill-Proof Tumbler with Lid, Pink, 2 Pack. Age 12 Months and Up.