Highlights：
Thermochromic ink which color change with temperature change.
Temperature:7-13℃,26-31℃,38-43℃,46-51℃
Color:color to colorless ,one color change to other color.
Detail information of products:
Thermochromic ink which color change with temperature change.
Temperature:7-13℃,26-31℃,38-43℃,46-51℃
Color:color to colorless ,one color change to other color.
