You definitely need to include this staple in your coloring tool stash! The Pure Black ZIG Memory System Dual Tip Scroll and Brush Marker by Kuretake features a scroll tip to create amazing calligraphy on your projects and a flexible brush tip that can be used for rubber stamping and brush lettering. This marker is blendable and has a water-based pigment ink. Included is one marker that is acid-free, waterproof, non-bleeding, lightfast, archival-quality, and fade-proof.