It's the perfect two-in-one container for toddlers on the go. The 4-ounce snack portion removes completely for easy cleaning or use on its own; the 8-ounce tumbler is threaded on the inside, leaving a smooth outside edge so it can be used alone as well. Small hands can get a grip with help from the adjustable handles, which can be moved up and down the tumbler or removed entirely. A soft bite silicone straw keeps the drink accessible when the snack container is screwed on, and the translucent lid allows visibility the snack inside. It's a rotating cover so there's no hinge to break, and it won't pop open if the container is dropped. The zak!snak has a patented design and is made from durable plastic, both dishwasher safe and BPA free. Do not microwave.