Prismacolor Marker Sanfords Prismacolor Markers has built a strong reputation with artists who depend on quality and consistency in color. These permanent markers feature two different style nibs that give the artist flexibility one end has a broad (wedge) nib and the other a fine nib. Alcohol-based permanent ink is low-odor and will not bleed. Available in an extensive range of colors including primary colors, mid-tones, grays and metallics. Due to particular formulation, metallic colors require single nibs; available in fine and broad.