U.S. Art Supply 5.5" x 8.5" Premium Hardbound Sketch Book, 70 Pound (110gsm), Book of 80-Sheets (Pack of 2 Pads) Acid Free, Neutral pH, Hard Book Bound Natural White Sheets in Book Form Hard Durable Black Spiral Book Bound Cover and Back for Lasting Durability Ideal for Writing, Drawing & Sketching. Use with Pens, Markers, Pencils and more Pack of 2 Pads