4 X HP All-in-One Printing Paper, 96 Brightness, 22 lb, 8.5 x 11, 500 Sheets/1 Ream (207010) 4-Ream Multipack (2000 Total Sheets), 8.5" x 11" Letter Size. Brighter 97 Brightness, Heavier 22lb Density White paper created especially for inkjet and laser all-in-one machines. It's thicker, heavier and brighter - a definite step up from ordinary multipurpose papers Brilliant blue-white shade that produces crisper text and richer, deeper colors for more professional looking documents Acid-free for archival quality. ColorLok technology resists smears and captures bolder blacks and brighter colors This product was made from wood that came from a certified managed forest