The MAS 6406 is a black permanent marker designed for reliable marking across a wide variety of surfaces, including paper, cardboard, plastic, metal, and glass. Its bullet nib ensures a consistent line, while the ink is formulated to be water-resistant, friction-resistant, and fast-drying to prevent smudging during use. Designed with an ergonomic body for a comfortable grip, this marker is safe for use in offices, warehouses, schools, and homes because it is non-toxic and contains no xylene or toluene.