The Petros notebook is a one-of-a-kind writing companion with a water-resistant hard cover. It has 64 leaves (128 pages) of 108gsm lined stone paper. This innovative paper stock is created by blending powdered limestone with bio-polythene resin, resulting in exceptionally durable, tear-resistant pages with a luxuriously smooth writing surface. The notebook also features an elastic closure, a pen loop and a bookmark ribbon.