Corelle Kobe Porcelain Coffee Cups Yellow Floral Stems • Set Of 4 Mugs Corelle Kobe porcelain mug, featuring a distinctive rounded square shape and a design with yellow floral stems. The mug belongs to the "Kobe" pattern by Corelle, which is characterized by its square shape and yellow floral stems, sometimes referred to as yellow forsythia or wildflower. These mugs are made of porcelain and have a capacity of 12 ounces.