Mr. Picky® Measuring Wine Glasses allow for discrete measurement of wine in a range of glass types. The Abstract and Original Premier White and Red Measuring Wine Glasses are made in a Riedel factory in Germany. The All Purpose Mr. & Mrs. Picky glasses are sturdier, less expensive glasses that can be used for either red or white wine. Measuring wine is a health-conscious practice used by followers of diets such as Weight Watchers, the Sonoma Diet, and others interested in moderating their wine consumption or counting calories in wine. Many doctors recommend moderate wine consumption for their heart patients. Mr. Picky & Mrs. Picky Measuring Wine Glasses are endorsed by world-famous cardiologist and heart surgeon Steven Gundry, M.D., and New York Times best-selling author of the Sonoma Diet, Dr. Connie Guttersen.