Made of polycarbonate, this clear drinkware may last you a lifetime. Manufactured to a brilliant finish, it has the look and weight of crystal, but it won't crack or craze like acrylic can. Strahl is specially treated to withstand repeated dishwasher cleaning and is microwave-safe. Stemware has screw-off bases for easy storage! Sold individually. Mfr.'s lifetime limited warranty. Pacific Blue. 10oz.