The Corelle Coordinates Stoneware Black Coffee Mugs Cups are a sleek and stylish set of three 12 oz coffee mugs. Made from durable stoneware, these round mugs feature a solid black color and a contemporary design with a glossy finish. With a 3.25 inch diameter and 4 inch height, these mugs are perfect for all occasions and are machine washable for easy cleaning. The Corelle brand is known for its quality products, making these mugs a great addition to any kitchen or dining area.