These Riedel O tumblers are modeled after the Vinum bowls, only without the stem. Trendy and sophisticated, these tumblers will perform much like Riedel's preceding wineglass creations, but will also fit easily into the dishwasher or cupboard without the worries of breaking the stem. For those who would like to experience the concept of matching the shape of the glass to the grape without the traditional stemmed glass, these Riedel O wine tumblers are the best choice.