Used for serving Champagne, the flute has a tall shape and small mouth to allow bubbles to move slowly and retain their effervescence. Etched with six effervescence points inside the bowl, this glass creates a continuous stream of bubbles even after the surface bubbles have dissipated. This glass is designed for enjoying Champagne, prosecco and other fine sparkling wines. By replacing the lead in traditional crystal with titanium and zirconium, Schott Zwiesel has created the strongest, clearest, most brilliant crystal glass available. Patented Tritan Crystal retains its clarity and luster for the life of the glass and resists chipping, scratching, and breakage.