Renowned Austrian glassmaker Riedel designs the shape of each glass to most fully enhance the appreciation of the wine within. These brandy/cognac glasses are designed in the classic balloon shape with short stems, the better to cup the bowl in the hand for warming fine cognac or brandy. The large bowl and narrow rim diameter captures and wafts the bouquet toward the nose with each sip. Beautifully balanced with just the right mixture of delicacy and stability, each glass stands six inches tall and holds nearly 30 ounces at full capacity. Makes for a superb gift for the cognac connoisseur. Made in Bavaria of more than 24 percent lead crystal for superb brilliance and clarity, Vinum wine glasses are nevertheless affordable because they are machine-made rather than mouth-blown. While all Vinum glassware is dishwasher-safe, Riedel recommends washing the crystal by hand to prevent detergent residue that can affect wine taste.