Whatever the project, this recycled paper works well on numerous machines - copiers, laser and inkjet printers, fax machines, offset presses or copiers. It is acid-free, so it resists fading and discoloration, and is ideal for archival or storage documents. This is a high-quality recycled paper available in a wide variety of colors. Made from 20 - 35% post-consumer material, the result is a paper that is suitable for faxing, copying and many other uses. This paper is packaged 500 sheets per unit (one ream). A case is ten reams. Two ream minimum.