This mug has a black glossy finish when it's empty. When a hot beverage is added, the mug reveals your beautiful artwork. Perfect for your morning coffee, a hot chocolate, or any other hot beverage you enjoy. The mug is not microwave and dishwasher safe. - Black glossy finish - Reveals the print when exposed to hot liquids - Handwash only - Not microwave safe - Mug Height 96mm, Bottom Diameter 80mm