COLOR CUES

Writing implements and their refills; pens; ball-point pens; gel roller pens; writing inks; ballpoint refill cartridges; pen ink refills; ballpoint pen refills; drawing instruments and their refills; drawing pens; crayons; pencils; mechanical pencils; color pencils; felt-tip pens for writing and drawing; felt-tip markers; markers for documents, highlighting markers; pencil leads; pencils with erasers