Sparkling Champagne Glasses (Flutes) for your sparkling wines. Your guests won't believe that these these traditional European-styled Classic 6 oz. Unbreakable Polycarbonate Plastic Champagne Glasses (Flutes) are not crystal! 8 3/4 inches tall x 2 1/4 inches diameter. Completely shatter proof and dishwasher safe (top rack, regular or normal cycles only, no heat dry cycle).