The Copic Colorless Blender Sketch Marker is the perfect tool for blending colors during and after coloring your artwork, and is also a good tool for creating unique textural effects. Filled with pure solvent and no color, you can use this handy marker in a variety of ways! Simply touch the tip of the Colorless Blender with a nib of a colored ink Copic marker, and let the color transfuse into the colorless blender. This will allow you to achieve a variety of colors from dark to light as you draw with the Blender. You can also use the Colorless Blender to "push" color around and "erase" inks, and make interesting fading effects in your Copic colored areas, as well as lighten colors that have already been put down on your paper.