The product is a set of 6 vintage Durobor Quartz Old Fashioned Whiskey Glasses, manufactured in Belgium in the 1970s. These square-shaped glasses have a 12 oz capacity and a glossy finish, making them perfect for all occasions. Handmade with a quartz pattern and dishwasher safe, these MCM Brutalist Mod glasses are a unique addition to any whiskey or glassware collection. The glasses are in original, never opened vintage stock, and are machine washable for easy maintenance.