Designed for the Early Birds & Night Owls, this coffee mug transforms from a matte black finish when it's empty, into the MMIFLY Brew of choice when it comes into contact with a hot beverage. Start your mornings off the MMIFLY Way.
• Ceramic • Black matte finish when cold • Reveals the print when exposed to hot liquids • Dimensions: height - 3.85" (9.8 cm), diameter - 3.35" (8.5 cm)
Note that in some instances the coating might not be 100% opaque and an outline of the design might peek through a little. Also, you shouldn't put the mugs in a microwave or dishwasher since it can damage the coating.