Esselte Ampad 19605 Cardstock Primary Colors 65 lb. 8 1/2" x 11" 50 Sheets 4 Colors Inkjet and Laser Printer Compatible Acid and Lignin Free 50 sheets of 8 1/2" x 11" Primary colors 65 lbs. cardstock Inkjet and laser printer compatible Acid and lignin free for long-lasting quality