From no spill and leak proof cups to water bottles for every development stage of your growing child, Nûby™ offers a full assortment. Nûby's Thirsty Kids cups support drinking development from 12+ months all the way through early childhood. When weaning and transitioning from bottle to cup, you can count on Nûby's sippy cups to make it easier. Whether for your 3+ months, 6+ months, 9+ months baby, or your developing toddler, there is a right cup for every child.The Nuby 2-in-1 Insulated Cup with Spout & 360˚ Weighted Straw features a bite-proof hard spout, which is a free-flow spout that allows for natural, easy drinking. For alternate drinking, the innovative flexible weighted straw moves to the liquid whenever the cup is tilted, allowing your child to drink to the last drop! The flip-top cap prevents drips and spills when closed. The cup is made from break-resistant plastic which is BPA free.