The Signal mug

This is only for black coffee.

• Ceramic
• Black glossy finish when cold
• Reveals the print when exposed to hot liquids
• Dimensions: height – 3.54” (8.9 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. You shouldn’t put mugs in a microwave or dishwasher since it can damage the coating.