This product is a set of two vintage Mid-Century Modern black glass mugs made by Arcoroc in France. The mugs have an octagonal shape and a capacity of 8 fl oz. They are made of porcelain or ceramic and feature a solid color pattern. The set includes a mug and a cup, and the product is suitable for all occasions. The mugs are not customizable and are 4 inches tall and 3 inches wide.