Who doesn't love a good surprise? With this color changing coffee mug, you're definitely in for a great one. This mug has a black matte finish when it's empty. But when it comes into contact with a hot beverage, the mug reveals an awesome looking print.
• Height: 3.85″ (9.8 cm)
• Diameter: 3.35″ (8.5 cm)
• Black matte finish when cold
• Reveals the print when exposed to hot liquids
• NOT dishwasher or microwave safe
Note: you shouldn't put this mug in a microwave or dishwasher since it can damage the coating.