Blackboards; Paintbrushes; Paper; Stationery; Thumbtacks; Bibs of paper; Blackboard erasers; Desk mats; Document holders; Elastic bands for offices; Envelopes for stationery use; Folders for papers; Luminous paper; Paper hole punches; Printed index cards; Rubber erasers; Stands for pens and pencils; Table runners of paper; Wrapping paper; Writing instruments; Plastic transparencies