Rob Roy Cocktail Cup's was designed by the legendary German bartender and author Charles Schumann, for Schott Zwiesel, and is a tried and tested shape from the 1900's. This 5.1 inches tall beauty will hold 8.8 ouncesfilled to the brim. Therefore, a classic 4-5 oz cocktail will fill it perfectly. This is a great glass for a Gimlet, a Manhatan and, of course, a Rob Roy.Made of Tritan crystal, a patented non-lead material made of titanium and zirconium oxide; resists breakage, chipping and scratching; thermal shock resistant. The reslult is a clear, shiny, thin yet highly resistant and diswasher safe glass.

Schott Zwiesel (a brand of Zwiesel Kristallglas, AG) has a 130 year history of innovation and success, including such breakthrough developments as the first machine made stemware and the first lead-free crystal glass. With the introduction of the proprietary Tritan® Crystal technique, which is the result of the addition of special components to the glass, like titanium, combined with a unique tempering process, Zwiesel has once again revolutionized the industry. Rigorous laboratory testing proves the brilliance, dishwasher safety, and break resistance of Tritan.