Strathmore Printmaking Heavy-weight Pads 400 Series - These pads feature acid-free paper sheets that are ideally suited for printmaking processes that require a heavier paper such as lithography, intaglio and screen print. The 280gsm, medium-textured natural white paper is strong and durable, yet soft enough to absorb many layers of ink. The pads feature easy-to-use flip-over covers that allow paper sheets to tear out cleanly. The full sized sheets are ideal for finished prints. Made in the USA.