Made from 100% recycled stone (calcium carbonate, a construction industry waste product), the paper contained in these premium notebooks is more than tree-free and sustainable: it delivers an exceptionally smooth, friction-free writing experience that is completely unique. The bright white paper is acid-free, highly durable, bleed-proof and fully waterproof. Features an expandable back pocket, divider ribbon or bookmark, elastic band and lay-flat binding. 50 dotted, microperforated pages per notebook. Hardcover.