Material:ceramic.
Product Size:8*8*9cm.
Package Size:11*9*13.5cm.

Feature:
The use of heat-sensitive pigment called "battery cup" cup, is poured into the hot water, battery icon will "fully charged", otherwise the temperature drops, the battery charge status icon, so we can be the temperature of the drink the cup of the simple understanding, but also kind of fun, in fact, we see the market thermochromic cup is the same.