These pads contain 24 sheets of thick 114 lb. (185 gsm) white heavy-weight drawing paper with a medium tooth texture and a durable re-workable surface perfect for multiple layers of dry media. They feature dual loop wire bound construction and In & Out pages (patent pending) that allow you to remove sheets from the pad for drawing, reworking, scanning and more. Upon completion, simply return the sheets into the pad. Brand: Koh-I-Noor