20 oz (600 mL) AS plastic Straw tumbler with unique compartment that allows you to add flavor to your drink. Compartment is designed to hold fruit and release its natural flavors directly into into your water. Includes 9L straw. Lid unscrews for washing and inserting fruit, and also features large flap locking panel to easily add fruit or flavor crystals. Do not microwave. Dishwasher safe.