Cross-section pad is ruled 10 squares per inch with "phantom" nonsmear ink that does not reproduce when photocopying. On both sides, heavy blue lines outline every inch, and a faint blue line outlines the 10 squares. Glue-top construction allows easy sheet removal. 20 lb. bond will stand up to the toughest use. Letter-size pad contains 50 sheets and offers a 27 point chipboard backer for writing support.