Seth Cole 9" x 12" Cross Section grid paper for drawing. 20# basis, acid-free, versatile layout bond, printed with a non-reproducible blue grid on one side with INCH SQUARES ACCENTED IN BOLD. Smooth, opaque surface suitable for pencil or ink, this grid drawing paper makes graph and chart drawing easy. Laser, copier, inkjet compatible. Used by draftsmen, architects, engineers for drawing diagrams, plotting mathematical functions, experimental data, more. 4x4 grid (1/4" squares) cross section. Pack of 100 sheets. Seth Cole graph drawing papers are made in the USA.