Quad ruled pages (1/4 in. grid) Hardcover lab notebook for recording details of experiments, inventions and lab work. Round binding which lays flat. Pages are 11 ¼ in. X 8 7/8 in. Blue imitation leather cover with coating for durability in laboratory environments. Laboratory Notebook stamped on cover. Page design includes ¼ in. scientific grid, inventor and witness signature blocks, sequentially numbered pages. Pages include fields for Title, Project name and Book Numbers.