Introducing our Quarry Stone Paper™ Pocket Notebook – a resilient and sustainable choice for your notes. Crafted from waterproof calcium carbonate (stone) pages, this 3″ x 5″ notebook comprises 40 lined pages and features a center-sewn binding for durability. For an optimal writing experience, we recommend using ballpoint pens or pencils. With its innovative construction, this notebook stands as a testament to sustainability and reliability in your pocket.