How cool! These 12 ounce color changing stadium cups just may help you make a great first impression. Molded from polypropylene /recycle code 5/ and BPA free, these vivid logo backdrops are union made in the USA and dishwasher safe. These innovative beverage holders change color when you add ice cold liquid; making them ideal giveaways for fundraising events or company picnics. Measures 3 1/8 inch.D x 4 1/8 inch.H and not recommended for microwave use.