Don't lose important documents to age. Alkaline acid-free archival-quality paper is less brittle and will not deteriorate over time. Designed for use in high-speed photocopiers laser printers plain-paper facsimile or impact-type computer printers this versatile paper is long-lasting and durable. This product was made from wood sourced from a certified managed forest. Size: 8 1/2 x 11; Paper Color(s): White; Paper Weight: 20 lb; Sheets Per Unit: 5000.