These Riedel Cognac/Brandy snifters are made of 24-percent lead crystal. The bulbous balloon-style bowl on each glass is specifically shaped for drinkers to cup the bottom and warm the brandy or cognac with one hand. Coupled with the narrower rim on the glass, the bowl is also designed to waft the liquor's aroma to the nose with each sip. These glasses come in a set of 2, stand 6 Inch tall and hold a generous 29-5/8 ounces at full capacity.