Rotring ink are Suitable for tracing paper, vellum, drawing paper and lineboard. Easy-flowing, high opacity, good adhesion. Smudge-proof when dry, not erasable with rOtring pencil erasers B20 or B30, lightfast, suitable for all forms of reproduction, coloured inks can be mixed with one another, high colour purity.
Obeta (O Beta)
Obeta (O Beta)