The Riedel Bar Ouverture Tequila Glasses come in a pack of four, and each glass has a 6-3/4-oz capacity. The shape and size of the bowl deliver the finest and most delicate aromas and makes the tequila taste round, supple and sweet. The machine-made tequila glass of the glass collection Ouverture is ideal for everyday use. Each elegant slender glass has a long stem and stands 8-1/4-inch high. These Riedel glasses are dishwasher safe.