16oz Clear Color Changing Reusable Frosted Cold Cups with Colored Lids. The cups are completely clear until you pour a cold beverage and like magic the cup changes to the colors shown. Cups are shown cold to show full color potential. Please note colors vary due to lighting, photo or screen resolution. All cups are unbranded, have no lines or markings and are ready for your creative talents or game nights. BPA-FREE. DO NOT MICROWAVE. COLD BEVERAGES ONLY. TOP-RACK DISHWASHER SAFE.