Domtar EarthChoice30 Recycled Office Paper - 92 Brightness - 88% Opacity - Letter - 8 1/2" x 11" - 20 lb Basis Weight - 5000 / Carton - FSC - ColorLok Technology, Chlorine-free, Acid-free, Jam-free EarthChoice 30 is an everyday, dependable paper containing post-consumer recycled fiber. It's engineered to run smoothly on a wide variety of printing equipment and guaranteed on all high-speed copiers, laser printers and inkjet printers. ColorLok Technology delivers bolder blacks and vivid colors with inkjet printing. Paper is certified by the Forest Stewardship Council (FSC).