Astro Laser, Inkjet Colored Paper - Mint - Letter - 8 1/2" x 11" - 24 lb Basis Weight - 500 / Ream - Heavyweight, Acid-free, Lignin-free Create attention-getting notices, flyers, announcements, bulletins and more with this heavyweight, high-quality, 24 lb. bond. Each sheet is acid-free and lignin-free. Paper also provides consistent, trouble-free press performance. Paper is compatible with copiers, laser printers and inkjet printers.