Koh-I-Noor 9" x 12" Sketch Paper Pad with In & Out Pages, 50 lb. / 74 GSM, Side Wire Bound, 100 Sheets/Pad, 1 Each features a fine-tooth texture, a durable surface resistant to erasing. Sketch is perfect for graphite pencils, color pencils and other dry media. Dual loop, wire-bound construction features patent-pending "In & Out" pages that allow you to remove sheets from the pad for sketching, reworking, scanning and more. Upon completion, simply return the sheets into pad and can also be placed in any other Grumbacher and Koh-I-Noor wire-bound pad. Acid and lignin free formulation is made in USA.