This set contains 3 pieces O Wine Tumbler: Tequila, Single Malt Whisky and Cognac. The handy machine-made spirits set of the space-saving glass collection O Wine Tumbler is the essential glassware for every home bar. The shape and size of the bowl of the O Wine Tumbler TEQUILA glass delivers the finest and most delicate aromas and makes the Tequila taste round, supple and sweet. The design of the O Wine Tumbler SINGLE MALT WHISKY glass incoperates a small, slightly outturned lip that directs the spirit onto the tip of the tongue, where sweetness is perceived, and serves to bring out the elegant creaminess of a top quality single malt. A sip of cognac out of the O Wine Tumbler COGNAC is a truly outstanding tasting expirience: fruit, body, finesse and fire. O is the ideal glass for everyday use and for every occasion. It is fun, feels good to hold, looks trendy and it works! All RIEDEL glasses are dishwasher safe.