Sketch Markers are the most popular of the Copic line. They are perfect for professional illustration, papercrafting, fashion design, fine art, manga and craft projects. The Sketch Super Brush nib acts like a paintbrush both in feel and color application. Use the Medium Broad nib for more control or use an optional nib (sold separately) to customize your marker. Sketch Markers are compatible with the Copic Airbrush System. They are refillable and come in more colors than any other marker in the Copic line.