Sun-Glo Thumbnail Sketch Paper Rolls by Borden & Riley are perfect for architects, engineers, illustrators, students, and more! This paper is durable enough to withstand rough handling yet, so transparent that details remain visible through as many as three or four layers over the original artwork. Create rough layouts, preliminary drawings, or studies for final renderings. Sketch movement and variation from previous drawings below for figures in action or blueprint adjustments. Sun-Glo Thumbnail Sketch Paper works great with ink, charcoal, chalk, or felt-tip pens and markers.