ORANGE MEDIA GRID Sketchbook. Design Ideation brand spiral bound sketch books are archive quality mixed media sketchbooks. Each sketchbook is constructed for durability and longevity. The heavy front cover offers project-tough sustainability. The extra-heavy back cover provides sturdy backing for sketching when extra support is needed. Design Ideation sketchbooks are fitted with heavy paper sheets that are suitable for ink, graphite, charcoal, marker and watercolor paints. The exceptionally thick sketching surface won't bleed through and will stand the test of time. Every Design Ideation brand mixed media SKETCH book is made in the USA.