The Process Blue 452 is a light blue ABT-type marker from the professional Japanese manufacturer Tombow. It is used for directly drafting tattoo motifs on the skin. It is water based with no harmful toxins or acids.

The Tombow ABT markers have two tips to suit every tattoo artist. The flexible tip brush is used more often for soft moves, especially in freehand work, where two different marker colors are commonly combined to achieve the right contrast. The hard tip, 1mm wide, is ideal for precise contours or corrections.

The Tombow marker is not suitable for imitating tattoos on the skin.