Copy Plus printer paper is an economical paper designed for everyday use at offices large and small. Offering dependable performance on all office machines, you'll want to have plenty of this dependable paper on hand for everyday, general office use. It works well in high-speed copiers, dry toner plain-paper copiers and fax machines. ColorLok® for bolder blacks, brighter colors and faster drying. Backed by the 99.99% Jam-Free® Guarantee. Acid-free material prevents yellowing over time to ensure a long-lasting appearance. This product was made from wood sourced from a certified managed forest. Sheet/Roll Size: A4; Paper Basis Weight (lb): 20 lb; Paper Grade (gsm): 75 gsm; Paper/Media Thickness (mil): 4 mil.