Popular in Japan for many years, this high-quality disposable bristle brush pen, or gasenfude, is now available in North America. The long, flexible bristle nib allows for creating a dry-brush effect while the super fine point allows for detailed work - making this pen ideal for hand lettering, calligraphy, comic art, or traditional brush art application. Details:Black 9mm long bristles3.1mm diameter at brush baseArchival, waterbased pigment inkFlexible nylon bristlesCopic compatible ink (will not bleed with Copic markers)