Blending stumps are available in three different diameters - 7, 9, and 12 mm.
Simply reshape dirty ends with a normal sharpener or sanding paper to guarantee further clean blending.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. The results achieved with blending stumps can be exquisite.