Convenient reusable carry-and-store box. Exceptional performance in plain paper copiers, fax machines and printers. Ream wrapped to preserve freshness. Acid-free for archival quality. This product was made from wood that came from a certified managed forest. Sheet/Roll Size: 8.5 x 11; Paper Basis Weight (lb): 20 lb; Paper/Media Color(s): White; Color Family: White.