Crafted of Stoneware, featuring a reactive glaze. Due to the nature and hand-crafted qualities of reactive glaze, no two pieces are exactly alike and will exhibit unique variations in color and pattern. Product may slightly differ from image shown. This Giant Oversized Mug is perfect for any coffee lover, it's sure to get anyone through the day! Also perfect for a mighty serving of cold beverages, soup, cereal or ice cream. Microwave and dishwasher safe. Mug measures 4-1/4 inch diameter x 4-3/4 inches high and holds 28 ounces.