... or more layers mounted per your requirements;128gsm, 157gsm art paper & 1.5mm, 2mm, 2.5mm, 3mm gray board. ... like crayons, markers, garland paper, watercolors, glues, pen, pencils, and so on.Packing details:Double Wall Corrugated Carton for Exporting and ... craft paper wrapped inside, size per your book specifications ...