Luigi Bormioli Atelier Sparkling Wine Glass, 6-3/4-Ounce, Set of 6 Glassware made in SON; hyx is extremely brilliant in color Elegant bowl shapes perfect for new world wine 25 year guarantee covers rim and foot chipping as well as discoloration Lead Free Glassware Made in Italy Dishwasher Safe +37.5% Resistance of the rim +105% Resistance to impact test +98% Resistance to twisting of stems Sound amplifier Lead and other heavy metal free Produced with low CO2 emission level Guarantees the stems resistance to breakages even after multiple industrial washing cycles Glass sparkle and transparency is maintained Avoids any glass discoloration. purest raw materials, advanced and friendly melting processes highly innovative production processes, enable the achievement of a glass: extra pure and totally transparent, sparkling, longer lasting, resistant to breakage.