POSCA paint markers are an excellent multi-surface, permanent marker. They contain water-based pigment ink, which is lightfast, water resistant and will write on almost any surface. The fine 0.9 - 1.3mm bullet tip of the PC-3M produces a steady line and solid colour that gives you the power to customise, create, decorate or mark anything that inspires you. The medium 1.8 - 2.5mm bullet tip of the PC-5M produces neat and precise lines, is ideal for colouring and is appreciated by both professionals and amateurs; its ease of use makes it ideal for beginners to explore their creativity. This pack contains a 6 each of Gold and Silver in both the PC-5M and the PC-3M nib. Also available in a pack of standard colours or an assorted Metallic pack.