Designed by 11th generation Maximilian Riedel, the Reidel Key to Wine stemless wine glass set gives you the opportunity to have a variety of wine glasses to match the variety of wines. 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 worldÎ"Ã?Ã?s most important grape varietals. Fabricated from machine blown non-leaded crystal, they are based on the benchmark shapes of the Riedel Vinum series but will easily fit into the dishwasher or cupboard because they have no stems. The Riedel O Key to Wine Tasting set includes one Merlot glass, one Pinot glass, one Syrah/Shiraz glass, one Chardonnay glass, and one Riesling glass, all of which have the varietal name screened onto the base. For those who would like to experience the concept of matching the shape of the glass to the grape without the traditional stemmed glass, this tasting set is the answer.