This hardcover stone paper notebook from the Impact collection is made of tree-free paper! Stone paper is primarily composed of mineral powder (80%) bound with (20%) non-toxic HDPE (a clean plastic). During production, zero water or bleach is used, unlike in the production of traditional wood pulp paper. Traditional wood pulp paper uses around 2770 liters of water and about 18 trees. This beautiful A5 stone paper notebook uses zero! Soft and velvety to the touch paper for ultra-smooth writing. 64 sheets/128 pages of lined white stone paper of 58 gm/m2. The cover is also made entirely of stone paper to save water. With a focus on water, 2% of the profits from each Impact product sold will be donated to Water.org. This stone paper notebook has saved 1 liter of water.