Weight: 100 lb. (20" x 26" x 500 sheets) 270 g/m²
Surface: Smooth / Vellum

Media Applications: 
Smooth - pen and ink, mechanical pencil, air brush, marker
Vellum - graphite pencil, colored pencil, charcoal, sketching stick, pen & ink, marker, soft pastel, mixed media, oil pastel, collage

For finished artwork this high quality bristol weight board comes in two surfaces. Smooth is rated very Good for mechanical drawing, marker, airbrush along with pen & ink. Vellum is rated Very Good for graphite pencil, colored pencil, charcoal, sketching stick, mixed media, airbrush and oil pastel.