Description
The cover color of notebook will be changed after the temperature reaches the point for color change. The temperature of color chaning for notebook is about 25 or 29 celcius, so it will change color when you put your hands on the cover for a while. Pages: 80 sheet, 100gsm. Notebook details: PU + Back cover inner pocket
Material: Special PU
Colour: Black with Orange, Black with Blue , Red with Yellow
