Perfect for every day use, the four white wine glasses in this set are part of the moderately priced Ouverture series offered by world-renowned Austrian wineglass maker Riedel Crystal (founded in 1756). Being lead-free, they're not crystal like Riedel's premium glasses but are machine blown of potash glass and are dishwasher-safe. Their thin rims are cut and polished to Riedel's exacting standards, so wine flows easily onto the tongue.