Riedel Vinum Bordeaux/Cabernet Glasses, Set of 4 Set of 4 Bordeaux/Cabernet glasses measuring 8-7/8 inches tall and holding 21-1/2 ounces each Machine-made from 24-percent lead crystal for superb brilliance and clarity Generous sizing enables the bouquet of red wines to flourish; tapered rims allow for swirling Dishwasher-safe; washing by hand recommended for optimal performance Graceful, symmetrical profiles with slender stems that keep body heat away from wine