18 x 24 Medium Surface 400 Series Wire Bound Drawing Paper - 24 Sheets:.One of the most versatile sheets offered by Strathmore this cream coloured drawing paper is ideal for sketching and finished work.Medium surface readily accepts pencil charcoal and sketching sticks.Also good for soft pastel oil pastel marker pen and ink.Smooth surface with its non-reflective finish and uniform formation is especially suited for line drawing and technical detail work.Pads feature microperforated sheets.Acid-free.