All cups are unbranded, have no lines or markings and are ready for your creative talents or game nights. Each cup comes with a lid and straw. Cups change color with a cold beverage and feature multi-color marble effect over the cup. Please note the cup is shown cold, when the cup is not cold the marble effect is not as visible. The straw even changes color when placed in a cold beverage! BPA-FREE. DO NOT MICROWAVE. COLD BEVERAGES ONLY. TOP-RACK DISHWASHER SAFE.