Pro Art Graphing Paper is a high quality, 20 lb. bond paper with non-reproducing blue grid. One inch is divided into eight grid lines. This paper is ideal for architecture, interior design, profile and plan views, and graphic illustrations. Sheets accept pencil, pen, and marker. Details: White with non-reproducing blue grid 8.5" x 11" pad 8" x 8" grid/inch 20 lb. / 75gsm 50 sheets Tape-bound For use with pencil, pen, and marker