Cambridge 06100 Business Notebook, 8-1/4 x 11", Hard Cover, 96 Sheets. Cambridge 06100 Business Notebook, 8-1/4 x 11", Hard Cover, 96 Sheets. Hardbound business notebook contains 96 sheets of premium 20 lb. bond paper that offers a no bleed-through surface. Each sheet is college-ruled with 9/32" line spacings and a 1-5/8" left margin. Margin is 1" from the perforation. Perforations allow easy, clean removal. Hardbound stamped linen cover provides a sturdy, portable writing surface for any busy professional. Wirebound notebook is undated for easy customization.