The Handwarmer, Mystic Waters Mug by Clay In Motion is a beautiful combination of dark blue and blue green. Your hand slips into a handwarmer pocket rather than the tradtional mug handle. These are high-fire stoneware mugs that hold about 16 ounces of your favorite beverage. Each mug is signed and dated by the clay artist. Each mug is microwave/dishwasher/oven/food safe and uses lead-free glazes.