This product consists of 4 vintage Pyrex Corning Gold Butterfly D-Handle cups/mugs. These round mugs are made of glass with a glossy finish and feature a retro butterfly theme. Produced by the brand PYREX in the United States, these mugs are original, microwave safe, and dishwasher safe, making them both decorative and functional for everyday use. The printed backstamp adds to their collectible value, making them a charming addition to any kitchen or dining set.