The handy machine-made Champagne 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 dishwasher. This classically shaped glass is often used for light, fresh, dry champagnes. However, this shape is the choice of those connoisseurs who choose their glass from an aesthetic point of view. The modern design makes them fit wherever you need them to, whether it's in the dishwasher, the picnic basket, minibar or kitchenette. 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.