- PRODUCT INFO
Thermokruzhkus is a classic ceramic black mug with a thermoprinted image. Pour in your hot liquid - anything over 96.8F (36°C) - and watch the image light up. As your beverage cools, the image fades away.
Available in three models, battery, light bulb & coffee cup.
Do not microwave. Limit exposure to direct sunlight. Hand wash recommended as dishwashing might weaken the image heat sensitivity.