8.5 Graph paper notebook, quad-ruled edge-to-edge 1/2 inch squares, 120 pages in a spacious 8.5 x 11 inch format ideal for graphs, math sums, composition books and notebooks. The notebook is perfect bound so that pages will not fall out.Squares: 1/2" Margin: No Numbered pages: No Edge to Edge: Yes Part of the Notebook Not Ebook series cover design. Our notebooks all have a distinctive, colorful cover. The notebook is perfect bound so that pages will not fall out and has a soft yet sturdy cover. Available in numerous other designs and also in a good-sized 7" x 10