This is an OEM Wausau Paper Astrobrights card stock pack containing 250 sheets. The heavyweight cardstock is designed for durability and is ideal for applications such as color-coding, menus, and posters. It is acid-free and lignin-free, ensuring consistent and trouble-free performance in various printing methods, including laser printers, inkjet printers, copiers, and offset presses. The cardstock has a weight of 65 lb.