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