Add vibrant color and precise details to your compositions with BIC Intensity fine liner marker pens. Perfect for writing, doodling, drafting, and adult coloring, these markers feature water-based inks that won't bleed through paper (results could vary based on paper characteristics). each marker pen comes equipped with a precise 0.4mm porous point that's ideal for fine detail work. And thanks to their sturdy metal nibs, these markers are suitable for use with templates, rulers, and other straight edges. Available in a spectrum of bright, vivid colors, BIC intensity fine liner marker pens offer a superb combination of color and precision.