Good quality, acid free white cartridge paper, which is available in two weights - 150gsm and the new heavier weight 200gsm - ideal for both professional and student. The 200gsm paper can be used for watercolour and light washes. With a solid black front and back cover, these pads come in a wide range of sizes and in a choice of Short Edge Bound, Long Edge Bound, Square Bound and Jumbo Long Edge Bound.