Cambridge 06672 Business Notebook, 6-5/8 x 9-1/2", 80 Sheets. Business notebook features a professional, flexible cover with foil stamped black linen and black double-wire binding. Premium, 20 lb. bond paper is ruled with 9/32" line spacings and a 1" left margin. The margin is 3/8" from the perforation. Perforations allow easy, clean removal. Wire-bound book contains 80 sheets in a one-subject format.