The unusually intense colors are very suitable for expressive compositions. The characteristic square section makes it possible to draw fine lines with the edge, or to color extended areas with the crayon broadside on. Easily blend colors. Transitioning colors is a snap, just run two colors up against each other, with overlap, then wipe with a finger, cloth, paper wiper or special pastel brush. Pastels can be removed almost completely from smooth paper with a vinyl eraser. Or dab with an art eraser to lighten colors.