The handy machine-made tequila glass of the space-saving glass collection O Wine Tumbler attracts attention through its stemless design. This makes it less susceptible to glass breakage and easy to put into the dishwaser. The shape and size of the bowl deliver the finest and most delicate aromas and makes the Tequila taste round, supple and sweet. 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.