Use this Holbein Meltz Colored Pencil Blender Dual-Tip Marker to blend and blur with precision and ease. Filled with a water-based blending solution that dissolves oil-based colored pencil artwork, dual round and brush nibs allow for precise blending in tight spaces and long, expressive strokes. - Holbein Meltz Colored Pencil Blender Dual-Tip MarkerHolbein Colored Pencils, DUAL TIPPD MELTZ MRK -