The Artline Supreme Permanent Marker is ideal for use on paper, projects, posters ad more. It features an ergonomic design for comfort while in use and a bullet style nib for precise markings. The ink is water proof and fast drying for permanent results. It has a polyester fibre tip measuring 1.0 mm. It's suitable for use on paper, card and more. The ink dries instantly and is permanent for long lasting results. The ergonomic shape will fit comfortably into your hand. The ink is water proof to prevent smudges and smears.