Blending stumps are available in three different diameters - 7, 9, and 12 mm.
Paper blending stumps assist with building smooth gradations of color and value with a variety of drawing media including pencil, colored pencil, pastel, and charcoal.Blending stumps also offer the ability to draw with the lifted colors to form extremely light, soft marks. Blending stumps rub across these soft, powdery materials to combine colors and smudge away harsh edges and undesired directional lines into a soft, smooth consistent layer.