BookFactory Carbonless Chemistry Lab Notebook - 75 Sets of Pages (8.5" X 11") (Duplicator) - Scientific Grid Pages, Durable Translucent Cover, Wire-O Binding (LAB-075-7GW-D (Chemistry)) Durable translucent cover Wire-O Bound Carbonless Duplicate Laboratory Notebook Wire-O binding  book lies flat when open Page Dimensions: 8.5" X 11" - 1/4" (6 mm) grid format Each copy set consists of 2 fully formatted pages :- an original, numbered permanent record and - an identically numbered perforated carbonless transfer page with "Duplicate" watermark