The Spring Collection Stoneware Coffee Mugs Vintage 70s Set of 4 features a unique green rim design at the bottom, adding a decorative touch to your everyday coffee routine. Made of durable stoneware with a capacity of 10 ounces, these original vintage mugs from the United States are perfect for enjoying your favorite beverages. The retro 70s aesthetic of the Spring Collection line adds a charming appeal to your kitchen or dining area, making these mugs a stylish and practical addition to your home.