BookFactory Computation Notebook/Engineering Notebook - 100 Pages (9 1/4" X 11 3/4") - Scientific Grid Pages, Durable Translucent Cover, Wire-O Binding (COMP-100-CWG-A-(Computation)) Durable translucent cover Wire-O Bound Computation Notebook Wire-O binding  book lies flat when open Page Dimensions: 9 1/4" X 11 3/4" - 1/4" (6 mm) grid format Computation Notebook with 100pages in1/4" (6 mm) Quadrille Ruledformat