Selling Blue and purple leather thermochromic notebook, color changing notebook, Leather journal that changes color, two sizes B5 and B6

This leather notebook is made using traditional bookbinding methods, done solely selling by hand.
The leather is hand painted using special pigments that change color when the temperature gets over 80 F or 28 C.
As you can see on the photos, it is enough to touch the notebook and it will react, and when the leather cools, it will return
to the original state. You can trigger this change with any heat source.

Each notebook is unique, and these are available in 2 size:

B5 (6.9 x 9.8 inches or 250 x 176 cm)
B6 (6.9 x 4.9 inches or 125 x 176 cm)

All our notebooks have our logo on them, and on each paper inside.
Each notebook has 120 pages.