Vivid Ink colours does not bleed through paper. Water based pigment ink is primarily used for painting and drawing on paper but also marking non-porous surfaces - metal, plastic, glass, cards, posters, pocelain, wood/crates, etc. Visible ink supply. Ink flow adjuster controls proper ink flow to ensure smooth highlighting.

3.0-3.5mm(writing width) Polyester fibre tip, chisel style