National Laboratory Notebook, 4 x 4 Quad Ruling, Gray Cover, 11" x 9", 50 Numbered Sets (43647)
Computation pad. 8.5 x 11 Inches. 50 sheets. 5 x 5 quad ruled on front and plain on back. 3-hole punched. Green Eye-Ease paper makes reading easier on the eyes and helps avoid eye strain.