Paper; Pens; Artists' brushes; Ballpoint pens; Bookbinding machines for office use; Carbon paper; Envelopes for stationery use; Exercise books; File folders; Garbage bags of paper or of plastics; Glue for the office; Ink for pens; Nibs for writing instruments; Notebooks; Paper boards; Paper staplers; Paper for recording machines; Pen and pencil cases; Plastic bags for disposing of pet waste