Strathmore 400 Series 18" x 24" Bristol Sketch Pad, 15 Sheets/Pad (70200)

Acid-free. When the longevity of cotton fibers is not required, both intermediate and professional artists recommend the 400 Series Bristol. The toothy texture of the regular (vellum) surface works well with pencil, charcoal and pastel. The smooth surface is ideal for detailed ink work and is also suited for pencil and marker. Both surfaces are excellent for airbrush. Tape bound so sheets can be easily removed, and sheets will have smooth, straight edges. 2 ply thickness (115 pounds), 15 sheet pads.