First developed in 1973 by Claus Riedel and the Association of Italian Sommeliers, this collection consisted of 10 sizes. Since that time new wines and wine-producing regions have taken the world by storm. So the series was developed further by Claus's son Georg, into an all-embracing state of the art wine glass collection. Praised in 1991 by Robert Parker Jr. publisher of The Wine Advocate, as "the finest glasses for both technical and hedonistic purposes are those made by Riedel. The effect of these glasses on fine wine is profound. I cannot emphasize enough what a difference they make." Thanks to world demand, Sommeliers is now the wineglass benchmark and the most successful series of hand-made glasses in the world. Each glass is individually made: the upper parts are blown into a mould, the stem and base are hand-crafted. Dimensions: 9.75 IN x 5.5 IN x 5.5 IN.