With the weighted straw trainer cup, your toddler can hold it like a bottle but drink from a straw. The weighted straw cup dispenses liquid from any angle. And with the flip top lid and Click Lock® functionality, this cup is also perfect for use on-the-go. Munchkin even backs this no-leak promise with a 100% replacement guarantee! Secured, and rest assured - this might just be the sippy cup of your dreams.