Alkaline acid-free, archival-quality paper is less brittle and will not yellow or deteriorate over time. Designed for use in high-speed photocopiers, laser printers, plain-paper facsimile or impact-type computer printers. Paper is made using 50% recycled and 30% post-consumer waste materials. 10 reams of 500 sheets per box. 92 brightness. Meets Executive Orders 13514 and 13423.