The Prezioso Collection is made in Italy of Sparkx Break Resistant Glass. Luigi Bormioli's proprietary Sparkx glassware formula results in glass that is both ultra-clear and durable. These machine blown glasses have laser-cut and reinforced rims with a unique optic design that features an infusion of angles. This Prezioso Double Old Fashioned glass features a transparent blue color that is permanent and dishwasher safe making it perfect for entertaining or simply for everyday use. Measures 4 1/8 inches tall with a 17-ounce capacity.