Get more with Specific with your Glassware! The innovative machine-made Double Rocks Glass of the functional glass collection RIEDEL Barware is specially made for large format ice. Pouring to the top of the thicker oar design near the base of the glass will give you a 60ml (double) measure. Genius! The glasses are based off the traditional serves for seven classic cocktails: The Old Fashioned, Manhattan, Daiquiri, Sour, Peasant, Buck and Julep.