The handy machine-made Cabernet/Merlot glass of the space-saving glass collection O wine tumbler attracts attention through its stemless design. This makes it less susceptible to glass breakage, easy to put into the dishwasher. The glass showcases the majestically structured Red wines in all their complexity and finesse. "O" Is the ideal glass for everyday use & for every occasion. All Riedel glasses are dishwasher safe. 3.8 x 3.8 x 4.8" 3.2 oz