Riedel Winewings Cabernet Glass, Pay 3 Get 4, ClearThe glass features a broad bowl that allows for proper aeration and oxygenation, which helps to enhance the wine's aroma and flavor profile. The glass is made of non leaded crystal, which provides exceptional clarity and brilliance. The set includes four glasses, but customers only pay for three, making it an excellent value. The glasses are dishwasher safe, making them easy to clean and maintain their brilliance and clarity. The Riedel Winewings