This sketch paper is ideal for light and dark media. The medium surface, 118gsm paper is 100% recycled, contains 30% post-consumer fiber and is acid free. It’s great for graphite, chalk, charcoal, sketching stick, markers, china markers, colored pencils, pens and white gel pens. 500 sheets are protected by a velvety softcover in rich dark brown. Quality Smyth-sewn binding allows book to open wide and lay flatter. Flexible lightweight format in convenient, portable sizes.