Schott Zwiesel Tritan Crystal Glass Pure Barware  Collection Dancing Party Tumbler Cocktail Glass, 13.4-Ounce, Set of 2 2-each Pure barware dancing party tumblers; 13.2 ounce capacity; 3.5 inches tall by 3.8 inches wide Tritan crystal: non-lead material made of titanium and zirconium oxide; resists breakage, chipping and scratching; thermal shock resistant; patented Dancing tumblers have a slightly rounded bottom that allows for them to gently rock, without tipping, when placed on a flat surface. Completely diswasher safe; will not etch, cloud or discolor for the life of the glass Made in Germany; well suited for old fashioned or whiskey drinks