Ampad Computation Book, 4x4 Quad Ruled, 76 Sheets, Ivory, 11-3/4" x 9-1/4", 1 per Pack (22-157) Ideal for scale, drawings, drafting and planning, engineering and technical applications Heavyweight 20 lb. ivory paper with durable, red pressboard covers 76 Quad-ruled (4x4) sheets are sequentially numbered (1-152) Twin-wire binding allows book to open flat for easy note taking 11-3/4" x 9-1/4" Size; 1 per pack Ideal for scale, drawings, drafting and planning, engineering and technical applications Heavyweight 20 lb. ivory paper with durable, red pressboard covers 76 Quad-ruled (4x4) sheets are sequentially numbered (1-152) Twin-wire binding allows book to open flat for easy note taking 11-3/4" x 9-1/4" Size; 1 per pack