Pi Supply Matte Black Magic Mug

Who doesn't love a good surprise? With this colour 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 the Pi Supply logo.

• 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.