This wheel-thrown, ceramic mug is made from high-quality, white stoneware clay and glazed with a semi-matte copper and sand glaze combination The bottom 1/2" of the outside is unglazed allowing the beauty of the creamy white clay to shine through. The mug has a smooth and comfortable handle and a curved rim that is perfect for sipping your favorite hot beverage. The mug is microwave and dishwasher-safe and comfortably holds 10 ounces of liquid (12 ounces to the brim).