Copic Sketch Markers are excellent for all forms of illustration, design, scrapbooks, fine art and more. They have an alcohol based ink that is permanent, non-toxic, low odor and acid-free. Sketch markers have a 3-year shelf life and are guaranteed for color consistency. They can also be used with the Copic Airbrush system
Copic SKETCH COLORLESS BLENDER- 00
The Colorless blender could also be described as a color eraser.