Karst's Pocket Journal A6 notebook uses no trees, less water and less electricity to produce, making it a sustainable option that stands out from the crowd. Inside, its plain pages are smooth and stunning white, providing a beautiful experience for writing, drawing or sketching. Karst's tree-free designs make for a sustainable alternative to traditional notebooks that's impossibly smooth and brilliantly white. Made from 100% recycled stone, each notebook has a fraction of the carbon footprint of pulp paper, offering friction-free, tear-resistant pages that are kinder to the planet.