Our beautifully designed margarita glasses are now made in the USA from a crystal-clear shatter-resistant polycarbonate that you just mistake for real glass Because they won't crack or break, the stemmed drinkware is perfect for poolside parties, picnics and barbecues. Set of six glasses for serving margaritas outdoors and poolside. DuraClear food-grade polycarbonate won't crack, shatter, break, cloud or discolor. Glasses maintain their clarity even through regular use and washing. For cold beverages only. Dishwasher safe.