Cachet’s Duets sketch book features a hardback cover with a magnetic closure flap. It snaps down to hold the pages and scrapbook collections secure. The acid-free, 75 lb. paper is ideal for pencil, colored pencil, crayon, watercolor paints and all types of pens. Acid-free means it will not yellow over the years, and thus provides a lifelong record of a young artist’s sketches and ideas. The compact 5.25 inch wide by 8.25 inch high size insures that this sketchbook can and will be taken everywhere and used well!