Hammermill Everyday Copy and Print Paper, 8-1/2" x 11", 10 Reams per Carton (500 Sheets per Ream): * 92 brightness * 20 lb * 99.99 percent jam-free guarantee * Acid-free for archival quality * Helps eliminate misfeeds, internal jams and uneven stacking * ColorLok for bolder blacks, brighter colors and faster drying