The durable, carry-everywhere sipper! Dr. Brown's Milestones Sippy Cup is made for baby on the move. This durable, bite-resistant, hard-spout sippy cup has a spill-proof design to help baby transition from bottle to cup leak-free. The Dr. Brown's Milestones Sippy Cup features a one-piece valve, making assembly and deep cleaning a breeze. And cleaning gets even easier - it's top-rack dishwasher safe! With a variety of playful designs to choose from, you can stock up for everyday sipping. 12 oz/350 ml. 12m+. BPA free.