This sketch paper is a general purpose, heavyweight sketch paper intended for the practice of techniques or quick studies with any dry media. The fine tooth surface is ideal for quick, preliminary drawings with graphite and colored pencil, charcoal, sketching stick or pastel. Each wire-bound pad features micro-perforated sheets for easy removal. Details:Available in multiple sizes60lb/89gsm100 sheets (30 sheets of 18" x 24")Acid free