The most popular sketch pad from Strathmore is the 400 Series recycled sketch paper pad. Each sheet features a fine tooth surface that is ideal for experimentation or perfecting techniques with any dry media, including pencil, charcoal, sketching stick and pastel. This pad contains 30% post-consumer fiber and sheets are micro-perforated for easy removal.Details: White18" x 24" (45.7cm x 61cm) sheet size 60 lb/89 gsm 12 pads (30 sheets per pad) Fine tooth surface Acid free 30% post-consumer fiber For dry media