Sakura Pigma Micron Marker Pack - Variety 6 pack (.005/.01/.02/.03/.05/.08) is a high-quality fade resistant ink pen that has been a standard around the art world for many years. The Micron is a widely used industry standard for fine to ultra-fine lines. Perfect for outlines or illustration in your Montana Colors Blackbook. This pack includes 1 of each popular size from .005 to .08.