These erasers are non-abrasive, non-smearing, erases clean, and do not leave white “ghost marks” on dark paper. It’s the ideal eraser for removing marks on mat boards as well as all types of drawing and fine papers. This product is an excellent eraser for charcoal, pastel and graphite drawing. Keeping it’s shape, this eraser allows artists precise erasing options. This “magic” black eraser also removes layers of colored pencil allowing the artist easier adjustments and corrections as they work.