1 of 1 people found the following review helpful
Amazon Verified Purchase(What is this?)
This review is from: Paladone Tetris Heat Change Mug (Toy)
The mug is fun, but the quality is mediocre and gives the impression of being a second. The stickers added to induce the color changing do not perfectly line up with the paint, thus you can see faint white lines in the cold state. Nevertheless it is a fun product for the price.