This 8-piece POSCA pen set features pens that can be used on almost any surface you can dream up - paper, glass, cardboard, wood, porcelain, metal, textiles, ceramics, plastic and much more. The PC-1MR ultra-fine tip has the same qualities as a paint marker in the form of a fine tip pen and is designed for those requiring an ultra-fine and consistent line. The paint covers surfaces well, is blendable, dries quickly and can be layered when dry. This versatile pen is ideal for a wide range of creatives, from beginners to professionals. It is a fluid and fun choice for art, craft, graffiti or décor. The pen tips can be rinsed with water to keep pen intact, allowing you to blend without fear of ruining your pen.