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: 18" x 24" (45.7cm x 61cm) 60 lb/89 gsm 30 sheets Fine tooth surface Acid free 30% post-consumer fiber For dry media