From Luigi Bormioli, the Aero Collection Italian Premium Champagne Glasses feature: The Aero Collection was designed with a swirling feature called the helical incision that is made to the inside of the bowl. Due to this feature, as the wine is swirled in the champagne glass / champagne flute, the turbulence created results in a greater air-wine mixture which helps to enhance the wine's aroma and flavor. Set of  6 glasses SON.hyx® - High-Tech blown lead-free crystal glass, is break resistant and dishwasher safe Special treatment and/or accentuated epicure (indentation) create extra persistent flow of bubbles is applied on champagne glasses Titanium reinforced - permanent anti-abrasion treatment applied directly to the glass’ stems to increase resistance to breakage Champagne glasses glasses have fine, reinforced and laser cut rims Innovative, elegant and functional design Pulled stems do not have any mold seams and are highly flexible Flute glasses have flat foot to guarantee better stability and easy to hold Fast wine aeration Measures: 3” dia. x 9.2” H Capacity: 8-oz. Imported.