The Koziol Whiskey Glasses 250 ml - 2 Pieces are perfect for classic high-alcohol beverages. The whiskey glasses are made of Koziol's Superglass, a transparent, indestructible plastic. The glasses are therefore also perfect for outdoor use. The glasses with a capacity of 250 ml are also great for water, cocktails, or other beverages. They can be washed in the dishwasher after use.