Thornton's Art Supply 5.5 in x 8.5 in Premium Hardbound Artist Coloring Spiral Perforated Sketchbook Pad for Drawing Painting Sketching, White (80 Sheets) & Black (20 Sheets) Pages, 100 Sheets YOUR ARTWORK WILL LAST  All of Thornton's Art Supply 100 sheets (80 white / 20 black) of premium bright paper will stand up to bleeding, rough erasing, shading and more. And since its acid-free, your drawings will endure for a good long time. HIGH QUALITY  Thornton's Art Supply sketch books are high quality 60 pound (90 gsm) fine textured paper is perfect for all dry media. This is a sketch book for pencils, pens, markers, charcoal, graphite, pastels and even crayons. Black pages are great for gel pens. TWO PAPER COLORS  These pads contain 100 sheets of acid free paper. Our artist sketch pads include 80 white sheets and 20 black sheets for different types of drawing, painting, sketching, charcoal, pencils, pastels, crayons and gel pens. LARGE PAPER  Thornton's Art Supply sketchbooks features 8.5 x 11 inch paper secured with a twin loop metal spiral binding inside a 9 x 12 inch hardcover. MAKE A STATEMENT  Our distinctive, sophisticated black embossed cover on this hardbound sketchbook tells the everyone that your work has value while providing the protection it deserves.