National Laboratory Notebook Pinit $50.99 SKU: 07333343644 Quantity -+ Add to Cart Details National Laboratory Notebook, 4 x 4 Quad Ruling, Gray Cover, 11" x 9.25" 100 Numbered Sets (43644)About this itemStitched bindingCarbonlessDurable, ri... Details Back DetailsNational Laboratory Notebook, 4 x 4 Quad Ruling, Gray Cover, 11" x 9.25" 100 Numbered Sets (43644)About this itemStitched bindingCarbonlessDurable, rigid gray coverWhite and blue paper, second sheet is micro-perforated100 Numbered Sets4 x 4 quad ruling, 4 squares to an inch