OXO Tot Transition Cup Set

A 6 oz Sippy Cup that transitions into a Big Kid Cup! The Sippy Cup’s valve is designed to be easy for liquid to flow when your little one is drinking, but is sealed tight when the cup is tipped, making it leak-proof when it needs to be. The unique twist-in valve is easy to install and stays secure, even when the Cup is dropped (or thrown!). The Set also includes a Training Lid to mimic open cups, and when your little one feels comfortable, the disk can be removed to be used as an open cup.