Tetris Heat Change Mug

$17.99 USD

Trumpet your love for tetrominoes with the Tetris Heat Change Mug.
This twelve-ounce coffee mug changes its appearance when you pour in a hot drink.
A near-empty matrix is displayed when cool, but fills in considerably in the presence of heat.

Capacity: 12 ounces
Dimension: 9.5cm x 8cm diameter (12cm with handle)
Image changes when hot liquids are added to mug
Hand wash only, do not place in microwave
Material: ceramic