Cool Change Color Changing Margarita Glass Set, 4 Plastic Glasses, 10 oz, Multicolor This set includes 4 cool change, color changing margarita plastic glasses Simply pour your cold margarita into the plastic glass and watch the plastic magically change colors before your eyes The 10 ounce plastic margarita glasses are reusable and durable for many parties to come Cool Change products are the perfect party favor, birthday gift or and everyday kitchen item for the kids Cool Change products are No. 5 recyclable, BPA free and FDA approved