Sakura My Name Twin Black (Fine and Superfine) (Pack of 2) Smudging also wrote to the cloth permanent marker is. Difficult to wash off, Suitable for name foreword to cloth, vinyl, metal, plastic, etc. Oil-based marker. One can write is fine and very fine. Writing line width: fine 1.0 mm, 0.2 mm thin Ink color: black Size: 1.5x4.5x20 cm