mr. pen- graph paper, grid paper pad, 4x4 (4 squares per inch), 8.5"x11", 55 sheets, 3-hole punched, grid paper, graph paper pad, graphing paper, computation pads, drafting paper, blueprint paper mr. pen <p>mr. pen quadrille paper pad is perfect for engineering and technical drawing as well as everyday note taking. this pad is great for using with 1/4 inch scaled rulers and templates.</p> <p> </p> <p>the package includes:</p> <ul> <li>pad of 55 sheet, 3 hole punched, quadrille (4 square/inch) paper in 11 x 8.5 inch </li> <li>4x4 graph paper is ideal for note taking, technical, and engineering drawing</li> <li>8-1/2" x 11 sheets are 3-hole punched to fit standard ring binders or pocket folders with fasteners</li> <li>thick paper to prevent bleed and can be used on both sides. hard and sturdy cardboard back for writing support</li> <li>pad has perforation at the top for easy and clean tearing</li> </ul> <p> </p>