With a simple tapered silhouette and perfectly weighted base, our shatter-resistant Tossa Single Old Fashioned Glasses bring casual appeal to entertaining and exceptional beauty to every day. After years of research and development, Schott Zwiesel created Tritan® Crystal, a break-, chip- and scratch-resistant glass using patented titanium technology. Dishwasher safe. Single: 7.6-oz. cap.; 3 3/4" high. Double: 9.6-oz. cap.; 4 1/4" high. Set of six. Made in Germany.