This POSCA PC-1MR Marker contains water-based pigments which can be blended when wet or overlaid when dry. It features an extra fine bullet tip so you can add precise detail to intricate surfaces. This marker has an extra-fine, calibre nib that measures 0.7 mm. It's suitable for use on paper, metal, glass, wood, plastic and more. The water-based ink is highly pigmented for vibrant results. It has a round, easy to grip barrel. This marker contains yellow coloured ink. The calibre tip, with a metal ring, has the same qualities as a pain marker in pen form. It is designed for professionals and beginners who require an ultra-fine and consistent line in a wide selection of colours.