The Artline dual nib permanent marker is ideal for all types of permanent marking, with a super fine and fine nib for versatility and convenience. Two markers in one - choose between two nib sizes. A common ink reservoir ensures one nib will not dry out. 2 nibs in one marker for versatility and convenience. Choose from 0.4 or 1mm line widths. Instant drying alcohol based ink. Low odour. Colour: Black