Pay 3 Get 4. This set contains 4 pieces Extreme Rosť/Champagne. The diamond-shaped machine-made rosť Champagne and rosť wine glass of the eye-catching glass collection Extreme is the perfect choice to reveal the bouquet and freshness of rosť wines and Champagnes. The shape directs the flow of wine onto the tip of the tongue, emphasizing the wine's fresh fruitiness while tempering its high acidity and bringing out its characteristic red berry and pinewood aromas. This is the ideal glass from which to enjoy typically tart, dry rosť wines. The Extreme glasses derive their name from their extreme contours. All RIEDEL glasses are dishwasher safe.