These Riedel O Cabernet / Merlot Glasses, are ideal for full-bodied, complex red wines that are high in tannin. Each red wine glass boasts a generous size that allows the bouquet of the wine to fully develop, plus smooth out the rough edges. They're designed to emphasis the fruit, playing down the bitter qualities of the tannin and allow the wines to achieve balance. Riedel O Cabernet / Merlot Glasses are dishwasher safe. Capacity of each glass: 600ml. Perfect for these grapes: Bordeaux (red), Cabernet Sauvignon, St. Emilion, Listrac, Moulis, Margaux, St. Estèphe, Cabernet Franc, Fronsac, Merlot, Graves rouge, Pauillac, St. Julien, Pomerol, Pessac Leognan (Rouge).