Tops Research/Computation Notebook,11-3/4"x9-1/2",76 Sht.,Brown Engineer's research and computation book is designed to help the busy professional record thoughts and projects precisely. The heavyweight paper with double wire binding will stand up to heavy use and erasures. The buff color will help reduce any eyestrain. The Quad-ruled numbered pages make it easier to index projects for future reference. Contains 76 sheets with 152 numbered pages.