The Uni-Ball Posca Pen features an Ultra-Fine 0.7mm bullet tip loaded with highly pigmented, lightfast ink. This water-based ink is quick-drying, waterproof, and flows smoothly, allowing for easy writing on almost any surface. The ink is permanent on porous surfaces but can be removed from smooth surfaces like glass, metal, or plastic. Despite its dense and vibrant colour, it does not bleed through paper.

The ultra-fine nib is firm and produces a thin, neat and precise line for drawing and annotating. Uni-Ball Posca Pens with ultra-fine tips come in a variety of vibrant colours, allowing you to create the ultimate Posca pen collection.