The Schott Zwiesel Stemless Burgundy Wine glass is made of tritan crystal glass; non-lead material of titanium and zirconium oxide; resists breakage, chipping, and scratching; thermal shock resistant; patented. Pure collection: high fashion and designed with sharp, crisp lines for a geometric look; moderate stem height and excellent balance. Completely dishwasher safe; will not etch, cloud or discolor for the life of the glass. Made in Germany.