This flute set is laser-etched at the bottom of the bowl for a permanent flow of bubbles and a good aroma development. The flutes are manufactured in very light and thin crystal glass with good mechanical strength. The stem is strengthened with a patented anti-abrasion treatment that reinforces the glass surface of the stem with titanium, thus offering permanent protection against abrasion and diminishing substantially the fragility of the stem during daily usage. These champagne glasses are produced in ultra-clear lead-free crystal glass that offers unbeatable transparency and brilliance for a professional finish as well as providing added resistance to mechanical shocks making them perfect for intensive daily use or use in commercial settings such as bars and restaurants.