All Memory System pens are made of pigment ink, acid-free, archival quality, lightfast, waterproof, fade-proof and non-bleeding. Pen cap color coord inates with the ink color.
Pen-Touch draws a shite opaque line on dark surfaces. It is most opaque on non-porous surfaces or coated paper stock. The special ink formula is free-flowing, so it will not clog t This is a permanent marker.
