Seth Cole Cross Section 4x4 grid paper for drawing is a 20# weight, acid-free, versatile layout bond, printed with a non-reproducible blue grid on one side. BOLD INCH SQUARES ACCENTUATED. Smooth, opaque surface is suitable for pencil or ink; makes graph and chart drawing easy. Laser, copier, inkjet compatible. Used by draftsmen, architects, engineers for drawing diagrams, plotting mathematical functions, experimental data, etc. 4x4 grid cross-section, 8.5" x 11", Pack of 500 sheets (ream). Seth Cole drawing papers are made in the USA.