NotePro Quad Notebook, Data/Lab-Record Format with Narrow and Quadrille Rule Sections, Black Cover, (96) 9.25 x 7.25 Sheets Right side is quad-ruled; facing page ruled for notes. Durable hard cover provides increased writing stability. Twin-wire binding allows book to lie flat when open. Includes colored adhesive labels to customize index and covers. Double-sided pocket. Microperforated pages.