The Ouverture collection is Riedel’s introductory wineglass series for those who appreciate good wines as well as for novices exploring a variety of wines. The durable, all-purpose glasses also make an easy-care option for entertaining. Our set of 12 lead-free glasses (for the price of eight) makes an excellent introduction to Riedel stemware. Dishwasher safe. 9.1 oz. cap., 8 1/2" high champagne glass, 12.3 oz.cap., 7 1/4" high red wine glass, 9.8 oz. cap., 7" high white wine glass.. Made in Germany. Twelve-piece set includes 4 red wine glasses, 4 white wine glasses, and 4 champagne glasses. A Williams-Sonoma exclusive.