The Riedel connoisseur will be surprised to find that this new glass series has something missing – there is no stem or base. So what is ‘O’? Riedel ‘O’ is the new innovative take on the wine tumbler. In short: ‘O’ is the ideal glass for every day use and for every occasion. It is fun, feels good to hold, looks trendy and it works! The designs of O are based on the benchmark shapes of Riedel Vinum. For the first time in glass history the design parameters such as shape of tumbler, size and diameter of rim, have been fine tuned to enhance the world’s most important grape varietals. Decanting is believed to allow the bouquet of the wine to improve and become more complex as the aroma of the fruit is emitted and sensed by the person drinking the wine. Those who are opposed to decanting for flavor purposes feel that wine becomes flat tasting as it is decanted and the process reduces the quality of the fresh fruity flavors so often sought in a good wine. 'O' Series crystal is lead-free, and dishwasher safe. Click here to learn how to care for your crystal.