Merry Christmas Magic Mug Temperature Color Changing

Is a Christmas themed mug great gift for Secret Santa?

100% brand new and high quality.
When filled with hot liquid, wake up.
The heat-sensitive material on the surface of the cup becomes colourful when the hot liquid is poured out
Limit direct sun exposure
Handwash (dishwasher not recommended)

Note:
1cm error is possible due to manual measurement. Due to the difference
Between different monitors, the picture may not reflect the actual color of the item.
Thank you!

Specification:
Product material: ceramic
Product size: 8.2x9.6cm
Colour: as the picture show
Style: Merry Christmas magic mug/colour change mug
Capacity: 350mL

Packaging Content:
1 x Merry Christmas Mug