Riedel Vinum Wine Glasses make every drop of wine taste its best. Riedel revolutionized glassware by customizing the shape of wine glasses to a particular type of wine. Each wine glass is fine-tuned to direct the flow of the wine onto parts of the palate that will best express the flavors and aromas of a specific wine varietal. The fine crystal offers superb clarity so you can experience the wine's color and texture. Moreover all machine made Vinum stems are completely dishwasher safe. Made of over 24% leaded crystal. The Riedel Vinum Cognac X.O. Glasses are not only beautifully designed they bring out the best qualities of fine Cognac. The gently curved bowl and flared lip of the glass concentrates and releases the complex aromas and flavors of the Cognac. A superb way to savor every precious drop. Size: 7-1/4"H 6-3/4 oz. Riedel Model # 6416/71 Like most fine crystal glassware some of our glassware contain lead. So in accordance with Proposition 65 we issue the following warning to our California customers: "WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm."